TopCoder Statistics - Problem Statement

Problem Statement

The reverse of a positive integer X, denoted rev(X), is the number formed by the same digits but in the opposite order.

If a number with trailing zeros is reversed, the trailing zeros become leading zeros and thus they are discarded. For example, rev(4700) = 0074 = 74.

Adding leading zeros before making the reversal is not allowed, so the value rev(X) is always unique.

The String N contains the canonical base-10 representation of a positive integer. Let int(N) denote that integer.

Determine whether there is a positive integer X such that int(N) = X + rev(X). If yes, return a String containing the canonical representation of any one such X. If no, return an empty String instead.

Definition

Class:: AddReverse
Method:: solve
Parameters:: String
Returns:: String
Method signature:: String solve(String N)
(be sure your method is public)

Notes

"Canonical representation" means that there are no leading zeros.

Constraints

N will contain between 1 and 5,000 characters, inclusive.
Each character of N will be a digit ('0'-'9').
The first character of N will not be '0'.

Examples

"88"

Returns: "44"

If we take X = 44, we have rev(X) = 44, and 44 + 44 = 88. Several other correct X exist.
"11"

Returns: "10"

There is only one way to get the sum 11: we need to choose X = 10 and then we add rev(X) = 01 = 1. Thus, "10" is the only correct return value.
"121"

Returns: "110"

Here, X can be any one of the following values: { 29, 38, 47, 56, 65, 74, 83, 92, 110 }. For example, 47 + rev(47) = 47 + 74 = 121, and 110 + rev(110) = 110 + 11 = 121.
"1000"

Returns: ""

There is no X such that X + rev(X) = 1000.
"8617689781716627974239799953268558104995368133253964803950367551453872774660542170889321633224760986746594324716180105428085449517721649499283529526364681169662473935317004154706903574151168106089617134726487657709817483650479559786844269273923023840134724422157707120274565915612535909461301177839153346029486261594412517774583702702210196951976780511104850143911897201017231876975274443398423366229799253907327472468390067077217708890226695869669260219915374835300056669684863982917134013924796488434487855997447918515006781120568279058327934147865603682914825214497652841312968462167944367126084206842976762205941230123840032948703000068283200039762973798366318302361896944107623179898637480696580759386973665789648614650471283489639476614570865146914157519919376381648440384967751166873840899900275372263329748667985112909205300076422016017817817790912725210058673580685259785646590064734779747010587926211675664634571477675345313750650758249376306326728461388205612201352940176284682231423728780912139667931846407253953541223218621486329066534435827186857452635977667471093657567477846883001842197148172324909848004773619783994123807206336422216591264773399062990594143930265682898525718410074549445755547662673282754502985891789946864059520650789777796060111683211663952989715441516060610850118771008085218930639135960541389598912449071082008415226489155647799247938845843800679249081869422896200591145686407804197072414713411769019970131613011689954336203202640605196196051526663737327621053154659057419501706847175047851174943308694242436690394500008582189160222052517437878395557785970034588071369124600121018757953881773542781429055665039475054259641271142366940791701010619336224664001578781091105011893964820888371739215881205949912528625424043111398203240180057817663516375600189218868017451129553513970986985850130944072330324777026705374552114503345092783256349911497825615986279042284123142445018948375496288150183379001444935072192462741663622774365666564303033491344322720789730365042988364459620181912029759616812292439998364067969559411264775188583855533231331502046557537466095168749350746704184982491426698044714554179806128490468547471637310515898232649699762770066756317872797730695444640805927009360301676307405731070495674977132452495541165382532540163845732824051504674810658265491259420022129461079767619783574361711465457789179009960488960039428148854317888861066761956668787032802769792827094889385309544154362178136089917202732596775953038353068705409653444555532669036068603637413485777062362117189916317722623614548144838894917172979673073406778667690576711578888234479508339400588950590098719877545750082534752979167580800648322200140620856617670183675040613183366583610342451945611444952552306804665950710276137135761030648996296081355435971278961788236467699673669969472228986151028460747547749948306079823455165508856350842904823976479440567625905647456557502051331313355493758815774631149550687714528999451932087158579312091820159643747803395730269980272233341953293133566566723772372670472731912815295440999822920507935954638499205432513203931409716896156277942289526523782904434154112454635087197874230232704590309485907790704054549311547097689218820956836153558177610810323919041102414156158263089505921796119371737891274683982205010910778861003673236329260101070881386742410731458525605738405665509340773552681783607479201111054308740707865299705778644938798337251403221608822759099944940867342433869123484820497404826387171049236609653612600367336283567252505826914170462013115345489961203061320689208682034175141707014078036866510861015993248591809518869974575479387528977466608857225138101712698443189058842449596409460299124808101669209491060606152336268902493672122871109605977878980461248613587489881885902944582832672567456565549553710138166248992864729293514059902608943685620857222137426017084313904869163674117390095231718516912581002786497747747662911736667806263437586916395344246609336842268013321543583636937471397670402190779263252321873835720393531022165017930659177226125839418580471474124534876750664265665662216287960107468775374609955475879614860864658610124183190867197088196192346700034920093114797668480332631744630989990482786622576604840447371736839289148604186416680665165749359952830651464168459876653796938580756970847358989813258114386991533128126638973802579410022828700002968503300472221321484132566803377123806317623508611647703131383458044225174202774054688514287239609728650111777095148198437995587855337856874293204407182903594868666510926473746089230618670675967319889167227697699948532748327093528979325634238933445824706692317201016992193409495010060777792487020122071963963678252044862516949305443410377820931550095362056186644830216967611245374310384203183828635376879559849474738180077576757264406169906107622514653996964613117035294842669610765627349342928950561178049555798345009816175125055585800574323362228989721360574683684541546739493094603423428634895117459722499980324697366270779867267"

Returns: "7817689775865827967179799946688549554987689633247957803949766775777786767655536669988666572624755978945894267665679597767997749459665879498682768766284675589886793928258503654698897487576167555589616573868478849659767397649779559786777268673866967779567864421657698569674485865556828859456295677779076738968786186587356767767883696896659696876896775505597849576956896695966666868967694443398363365629798647856667472389789986988666858889666695789668689619858373975295056668877857982866573513924788487767487855997377918464956776069789689988327867577864897676914767663797576775656967756589943688565577656776976686604975665122979966948696999987676699539756973798366267652356896877557562679898576775696575758786973585789577807575465676789578768857565785146863587468968776376639779777958876166872935899895267766656669748667977556859197699988761965967809817699956717659558587580684688978645889557674778878959887865661668584627565768874744657675645758178775655668669460787697856695676879668677876666423668775861579667931776398653882770623159866395729066467767926686857376568977666785586886786769846876995971688577666667859839504767568897987563807155676366666585687767398556989893643929664876898465667759567778745685547656666676754496985886789876857558765579988977795559555876656663946988865376465555555849568685957577659869878575959776388898862448986076957757668488585647798647878774973799878678576859766895695585575686357753696566757663356768519889626556960889877335652696879804688188976466657728666820552653888556768795856838674539845674872658687636376685394499958576188585162046766769878394787778969967587565768563895065968749953876766772775768548584538787984258875665576766875785895959868668617857995878775585597961893883965887766678658876198949856528568417042555798197179599557767586758695595188668867958775568777457965898985849569973566269667896968705367476557753344586777185678961497765565986198536683566571777968948367788687579682698995777867572191781935856822773685658557652966786337666869989669684976979763759569676856529758858756686739998287567889488706264775188577848472665665796976556837465588167879349938697677982485726599974664547679755567789767776765877255465898226649699682769986678667871899665695374575755926999755250868656755725565495667976566746494775587781832479586975672817550797667959857688485689369966628755999759568982867286705765457789178959889788889978767578777667888785566755986668778972752769792768587888777708773653686669568589866651866896775876537753068655358852774500760080500500000060056700000075680550500057658055760050770067060007058500000000500608000000795000055700000566700750660600700070700500000000000075005707070080508000805070055500500755007750080586007070056000600786750600070067755670006075650007000005055000560567080505069000000505600700005608980000567700800000800000006000000505500675070770070070650500056000500708900075000007056008080000780007050000070000705075665650607006000000000005070700800056700000075065508570000055505050500070068006600860600080585566005076600566008000860000086085080860000057607665000860050750067077000000507660756550065050800000500600000590760706006050000576555707000008500886560606050790650000008805006506770655768500000550005000867576700500050850606000065550007007500006500007005007550605060005580800000507055055000075006086067660570505085005600065655065670000707860050807050665000776005000008000505505070650065050007600007000770000008660575000605750006000500000005000606066000560700055008050058000585070560050770050050080668006000605707008050080675050550007700080506505050800050005500507565050050500500000755005050006569005050750080000780700600060000000750008557560505005800000500070005670000650670609557050505800550005505050505600580006000005556085550050000080080705570056000700005000006000006066006000000700070776050560500600006080060000050070006050006007755000555500660500000656006880506000058000507565050758050785006000008070870776055860000007606700000050097666600000060905578500060770700068000700000000650505000600005655086067050606765055577050060009508560560060700005005706560060088075007000807000550600070508680000607050070007080750000006800050557006590900008000500500667800067000506557000000000666065067005000005090000005788007060668005000060590500750500000805007577070600076065005707080700000800000060005000005070600000050600556600005000560500000000006000050056060800006000006600680005655690065700006600556050658760008755070006565606700070557500006006070000756600000709858770505000500500000700000000007660008000000050650500006007080000005000680007500060750000800000650000580558800800068700000660506060000060000600000000857008005650505050005596650007055005000805700050555085000076000575507005700070607066700600055005000507075500500800060558000050000686650606506500060007600000000070006800500508088008580650000050550005756806008000050058507000865779755000800670670060000775508500077800667050050507500070087005000060605560090055005007006806765770060000007006000058767000558000856000000607000080585000000080"
"10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001"

Returns: "10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"10485827274850"

Returns: "7382858692013"
"1"

Returns: ""
"2"

Returns: "1"
"3"

Returns: ""
"4"

Returns: "2"
"5"

Returns: ""
"6"

Returns: "3"
"7"

Returns: ""
"8"

Returns: "4"
"9"

Returns: ""
"10"

Returns: "5"
"11"

Returns: "10"
"12"

Returns: "6"
"13"

Returns: ""
"14"

Returns: "7"
"15"

Returns: ""
"16"

Returns: "8"
"17"

Returns: ""
"18"

Returns: "9"
"19"

Returns: ""
"20"

Returns: ""
"900090090009090909900000999909900090090009999099099000990090909999990909000909009999909009090990099009090900000999090999900000999009009099990099900090099990000999009099000000000909000999909099009009900909999000999009909000999090900000000909999009099990900909090990000900990909000090990909990090900099909999909090990900999009909000090999099090000909009000990009990900090099090009909099990000099099999900000090090099099000900009909909000090099900909090900909009090099000999009090909909999000090099099909909009000099000000990099009090900990900900000909999990999999099000099099990"

Returns: ""
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

Returns: "889988888988989879879889988988899887898898988888987988899999889888899989988899989798888889888888788789888888898997888999888799897988998888887899898789987897889878998997888998987889888989788888898798978888998888989799899887998979998888899889889889988888777887898879889899998888988889889798887988877878878788888978878888788777887888878877877898878888878899788888987988887789887778787787878777988778988778788788798888878888797789977888888777778898778798897878888877788888878778877777877877978877887888887888988888788987898888878778887788887898778897788889887878878878779888888877"
"900099990909000900990099900999099009990900990990090999000090009999090990999099999009090009090900090000999090900900909000099090999009099000909990000909009009090909990099990900909099900999909099999009090999909099090990909990900900099990009909900000900009990009000009090990000099909090009099999999999090099099990900990990009999990990090099900009099999909909099090000000990009909000000909900009000009909999990900900009009909009090099990000090909000999990900099990999009990999900900000999009900000909990090009990000999000990990009909990009090090090000900990000990900990090999090909009900999900000999000990909900000999000999090990009900900000990000990990090909909909009000099000099009090909000990000099000990000090000999999909090900090999000009000990000000009909090909999909909009000090000090999900009090909009900990999090090000999909999099909090009900900999990099099009999009990900099900000990000990099999009999099900009909009000999090900099900909090099990990900009090000999999990009090099909990900909900090990909909090909099999099900909009009909000000099009000900909090999000900990990000000900009099009999090000099909090099009009909000090990990090909999000009909900000090999900000000099999000099090909090900990909900909909999900000099000099000099009999909099999090990090999999999009900000900999990099000009990099999000999090099009999999090099900009990990909009990009990000909999000000900999090990999090990090009009999090990999909009909900909099990909099999909909000999009999099990009090090990999009090000999099990009990009999900090999999090000900009909900999990090909099009990090990090099999999090009099009900909990099990000900900909009090009990909000999909990099090090009999090909909090009900090090009999999999099909990909000900909999090990990009900999900909999090990909099000000999909009999009099000909090090099099009000000990009990000999999900900099900000000099000999000900909990900909999900009990009999000909000999099099900000990090909099900000099099090099999999009009900099900999000990990000900000090009990990900909999009099099009999000090009000000909009999999990000000099099990099990999000090909009990999000909009990999990999000990009909009090999000009009909099090000090909000909009909000990099099000090099090000990000909009009990990009099009000900009999999900009999900099000990000909999999909900099990099000009990009909090090099909990090009099000090090009090990099990009009900099909000000999990090909909909990000900900009009090099000999099900000990999099909999999090009000009090099009900009990090990009090900999900090909900000990099900999990909999099999009099900999099909900990000000009009909000009909099090000009000009000999099099090900000900999099990990009000900099909090009999909099900099099099909999909900000090009900009909009909900009999900909900900900009909099990909000000990009000900999090000009090000000900909099009090090900090009900900909900990909909099090990009000909909990090090099900990909090000099009090909990999099990990000009999900909909990000909009999909999090909900999009909000000009999000000990099999909999909900900000900990909990900090090909009000099099909009900909990000000990000009000909009909009999909909990090999999999000009000900909009999009900000000009099909909000999990990099999090909090009900909990900000909900090999900090000990099090000099000099900090090099909099090000990000900009090009099909090099099999999900999909909000099990990099900909909990009009099999999909000909009000000990099999999000999009000099900990000099900900009990999909909009090090090990000990999990090009009099090000900909009909909090990909909909009999999909090000900009000909009999909909099090000990909900000990900999900009000090090999990990000009099099909999999900099099990999090909009090999009000909900999909009090090999999909000099900999999900900000000990999090000000000009099000009099900900000900909000909090099099009900099099900909000900909000990009900900000090990009999000090900090000990999990099909009000999099009900999009990090900900999090000990000000900090009909009009909990000990990999090900909009009099909090090900999000990999090090099000900909099909090000990090000090009900000090000909900090900099009900999900990090990999099909099999090990990909090099000090009000009009909909099009009090990090000000009009900909009990999000999009099900009099900909999999909009999999000990099990990099000990000009009999999999099000900009099090099990900099099909009999009099900999999900990099000909909990900909000990909099009099090999000990909990900099999999999999999090999009990099900900909909900999909000090090900009090900099009990009090090099000990990009909900999009990090009990990900090090909009099990999009900090909999900999099009090000900990090990090990990909999000999099099909009999090999999090900009099900000009099090909909000099099990909090999090099990900090990099000090000900999990090099009900900009909990099090999900909900909099099090090909000909009999000009999000009990090909090999000099000009099099090909090099000000999900990009999009999090909099090909909900909090909090900009909090999900990"

Returns: ""
"110110010110010001000000000111101111011101111111011101101100110001110000001000010010110001001110001011000010010110010110010010111001101000111110110011011100111110101111000011001111000110010011100000001001001111111110001001000001111010111011100101010000110001101000100101100010011001011000110010010101100110001111010111100000010011010010111110100011011111000001010101110110111111010111010000110010100101011100001001010100010101011101110101011100011100110010100011000000010110000010111110101011111010101111000101001101011000111001001000111010010110010010110100100111100000010111"

Returns: ""
"18329138"

Returns: "9269509"
"289131018991100083010121821201920092103008919990010110190111090001092002000099920899201291019201139012109389990200910022081"

Returns: "199125959991099992955115921151915092102999919990005105190105990500000500500000000900000000500050009500550090000000950500090"
"222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"

Returns: "222222222222222222222222222222222222222222222222222222222222210000000000000000000000000000000000000000000000000000000000000"
"539229167211189750849888270713415547817300976102684044041184728227180856018649751452915429706667867386063067445214146071860"

Returns: ""
"1111111"

Returns: ""
"738052592261498625009619563350672592876821863816290140473194363914709132738901667739092510956373569453608889551560892927521014122831301512514973799218025858065077141396955178862108782550818577167364725285782774253832336721150503381908921858673794759290854390731125170119694257294320643365328817457928342210206044314678115519966980712253966161800638587302944222519054813952009692672217868788447917916899902035109483436205206789477290902676945781217151716993952841207199600464890491852483379427595264771344327608180255401220079828770845629038843211198372592648028928639525192436"

Returns: ""
"90000991090091100191100910101190191110911119019000019199009110901910111090919110110910009110111099091099991019111900919919199101919119190901190090000109991990109110001000110009911901010909119990109190090009101991190111091191001991091900091190119111190900191011010001910909001109100001909191110119119101090110901011199091909090909000999900109119900199999900000991119900019001900110111099910091010910001091090090900901000901009110191099010090901010901190009199909991001991990001990111190101019010010090090099910100919001109999110999991001009101009999191110191910990091090191110991101090010991910010100011990999019999901100111001900909090990099091190001999110019110999911901900010110000909001190101909090100000090011011000099199101909190000900919909011191099001911990919119990109019199910110909009000911099900101901911110909190009900999990901991090110909091910919909919999011919000909090191910991910091010009090110009919099190019000991091911011091010919000110910991990190910090901919110101909111119909910091099099100099910990111009019909090900101991991109019911091919919091090100991919190911110109911991910099090110109199099101100991191110009011990900990919911911900090900101091919919090091090191109110011011190110091199099119909001990901119991099909199100090091010090190901019909010000911119000900010990010991909999019991190991991999100109991111011111911919999199009001110991101090199909101091909190900190900011191919001911919199199100991101010099000999111001199199191999109109911010191191991900091109000199191010901010991111901919111119019010110900911991191100000111010911090101900919009110099010999190010911000109109011001000010909901000191100000900901991019919110911909990091001100910911101999009199019910101099919101001011911919911190911110019911110111910119110910109109199900190901909109090900910119009090011100111001911001091909901911010919910110011000901190001109110009011999911109999900000990990110000109999009109110110101010190919011999001190099001099119019011909909909090999099901019090199111101901190011190111910019900911901110199099911011110001090000101100009010119909911110009109909001091910119190109909111990911999109011110111099901199111910990000199090000090019019910909091110001119099090901991910991991191019119019999999100199109191199111090010910911990199010019991100110100991111019001110990900091911000909110019011911909009019911910900009011091091019001090101119900001991010090090119100909000019010091010191999001011110091900191100991900000901991101901119101100199919100001001990011101110111909119191019090190019911910000110019100091911119091910919100999119019190191010011090009109091999111109011990111910910100109191991911101000110199199009910009019119199111099010191110999191109910109019001010999990111110190911911000990091110991011911999109011111119009909010101090901090990909009019109999901919909911991090001101100090110090099190001099090990011009911090919109199910199909901190919109199000090910100901010110019910999909101990990199010900191991100111091909999110999999000001099111110101099900911019911000999999990190901901199990019110999109199190910119101110911019919000011090019000991090190109911099119109991111999090991001109000999001001990190990090911111901119019990990091099119900919110011190009900010101101000010900119111191111100909109910100991190019199199100091101190910009010900111990101191001000000991110001000099009111090909011100199199090910909100999110010999901099010190099910110900109091091001101000101101990019010011100910119019119110909101091910900101100100000000109991001911900111090100909019009990191900019000910190111099100919101911991909011919119110001911990909990119011199099119110911910910990919019919100109999100901901990990009111119190910100911111911091991091190919900009011110099011000099009111901909119090090911009919190901910111110919990119911909100910911019909110901091000999110110019910009199119100090119999099101100001099090010010909100191190991901000110109191991010900901099110110199100910990990901199909110199019901091111100000019101910091101990111990001011911911901191910909911900110910090019909009099190009991099009011009911901110019199900011090111991091009999110190911919190909019009100011991000099919111090109901091119109019999099110019199110919019011911090109000901109110091100090019100199199199000100910190199001000910191901091909911011011009001091111901019199990990191119911999190100119990110911991000119900900011010000991011091199901119000901111090091011191110019109110919119091110999190001991911991010901190909010019009109001919090999090199999991090109191909199911111009900099019991910191110101011101001119010001111990909000190910119110090911909919190010990191010901909000091109991091019999919091190119001911119910001109101191911911909090909100110091091909111190990910909019090091009099099001009911090100911909091911199009019119010091910011091991009901991011901110191000910991090001190011191919001990190909000900119900109011010100011190011191191091901101991000009010100909111000900990101099019011090101190910909919901001000919091911109991"

Returns: ""
"109000011099999099109909011109199909919019109000109990910199191919009110900990010909001111099011019110011101901909901009900"

Returns: ""
"100899100000908990901908999999991090000989919809901900000900819900089901089910900980109000891008999198910899909909099100809901099891009090999900909081000000990009810090009008909990019908909190000008991989099999001098180010818010090000000899001000990008918190900000989990918909990019098999910810090090890019089100890999091900000990908909990999900099900100891801908010000908010080901908909999919900008180900019000990909908091998991000008918910891810899108918190009000000890901989999991008990100090900098991900908190008910090891900000000009990000009009000909089900109080010809991008099010000891989018901098999019009900008100981981090899001899991989999000189109000098990990099918918999099919900890999918910089999999919981098108999009999010081890189090010900090000900891981908018108909910900089109080919909810000989100900089910891980900910000891098991089910099908999091908099919000891080991000081899109990909891989091081999900999899189108910008991899000199899099999100818999999919090899991008100008109809901809909990999919909089108910818990999999919890090100899190980190891900009009900090009080900181891009098099181900098099991900000090089990910909891089018190000801099899009010891000899990099180018909910090000098999100989901810900800198189091819909008190000081089099181000890189999091008999099999990010009990899909100000000899198900909018999919890999190008910090009008990919909819089091000891890999909090010081008091008918918991999080109008909991989909018100909009008198018009990991800909910089999919899099999001980919009891890018100909008991818991818918099099999990189910900891000989189991809010008009900990991909908900991908901089999919009800909991000009891081909980018910980910000908108199090998919000800000108910000810080991809109890109989108019999809109009818991989999100000899199090801900891009909090899910900899910008180910899900918198910089189999090991899918991099009900081908999910900809108999010000089001819891099089909901000900009980990999100908009091801899099190989901899990910909089910099000099800999090918099018100809909108919809001981099000990008181980099099099991809190000000081989100000081008009099018910000090980990910090000098199080100081998900010089999999108090990010099819009900890919908991810000900999819008018099909100000899091899991801998099018100899901000810890100008999090990189100989019000810809991090890001009089909091008000991990009009810809199000989918189900018999009909091980189099990900181909819801890918999100090098099999910891081810000081900000000908108918999099909990009990999100081089190900000000818999991818910890999999199008999100080910801981990818000909999108019809090990100080001008181009900098091891990090009809900189909091009089900010908909991891900080109899108009909100089999010891899901000899180099199801810000809100899999090999180190081999900899991810090980910900990081998990009909189100000008990001099818999019098199000008990909919908999991080099090189918999999109819000000008091809999099099019818190009900098919800091981089090991899180099180909099901999000098991009090890910000801009908099100801809090190899099909919990000899900991009098910981800108999990100089091900891000090819000990098910081000809909100008108991098180901000890918189991000900891000909090989910900801909098100899999100009810081990089091999980189109989010989091809918991899991089000001900081099909098189190899990919891080019990818910989999909990901990081000008901090809901090990809909900990189990091810008109899910900891008009999999099181081810081810090090899180010810990080919800099999100981000008990990901809909990180198190090090899180091009809991090089019099810081081089909189918990009090999910810899909109081990980910090090008991090008099910981000080090901098100899999999091000909989990009999999100089909100008010899918099108919000008190090981809108198001900891801009899100099000008990991080018099010000899910890090100998901900008180108910990890910009009000000809999199000818099199089910818000919090009000990090000810908019908100899009010980999999910081891089109090980999909990991800991989189999189910000909081000000081899099999100998000100810089991089108100999900999818909109810990909989100818999909918910900080999190809100090998991008910098910899990900919810891009000899109899991990980919089109000890991089180190819810900900009000890009108010818990099990100089198919981000000008991080999910900980999100081080999009910099000089108000100009810000800100908919819899190000990080100098901080109810899990099189909991890019089001009090900090090000009990000000000810908991090008190900810099000908999010089910000009800910900000090008181089100891810891081089999910099809190990909900080000918190000980999991090800918990190899990190801810899000999000999909991090909900000809099910899109080010909008991891000099080009991080910009900000908181090009899900100900000008990181890018198900099999109810090000008091090980009991090090008991990009899999919090900999909089910998900991899099090991000891098100089910900089019900891008901009000981900900000800991981009900008910000000090800910090899999100899"

Returns: "99999099999999990900999999999990999999999909909900999999999909999999900999909999990099999990999999099909999909909099099909900999990999999999999999990999999999999909999999999909990009999909099999999990999099999000999090009909009999999999999000999999999909099999999999990909909990009999999909909999999990009999099990999090999999999999909990999900099900099990900999009999999009990900999909999909999999090900009999999999999090999990999999909909990909999099909099999999999990900999999990999990099999999999990999999099999909999990999999999999999999999999999999999900099990009909990999099009999990999009900999999009999999999099990990999999000999990999999000099099999999990990099909909999099909999990999909909999999999909990999099999009999009990990099090009999999999999990990999009099909909999999099990909999909999999099999999909990990900909999990999990999909999999999090999099909999990990990999990999099999999990999090990999999999999099099909999990999000099999099999099909999999909999999990999099999099909900909909990999909999999099909909990999999909990090099999099990099990999999999999999999990900090990999999099090999999099990999999999999990909999990999009099999900999999009009990999999990099090009909909999999999999099999900909999900099099090909999999099999990999099090999990099999090999999099999990009999999999909099999999999099900909009999909990999099999909999999999990909999909999090999990990999909090009990999090999909909990999990099999909990999909009099999999999099009009990990900909909999999909999099999000990909999990990009099999999990909990909909099099999990099909999990999999099990909009999009900990990999999900990999900999999909999900909990999999990990999990009909990909999999099099999999909999900000099909999909990990909099990099999099009999909099999909990999999099999999099999900999990999999999999909999999909999090909999900909099909999099999090990999909990999999999990999999909999909099999009999999000909990999999909900999999999990990999099999009090900999099099999900999990909999999909999999999900999090909099009099909909099909909000990999999999999090990099099099990909099999999990999099999990999009099009909999999990990909999999999099990099990999900009999999999099090990009999909999999990909999990909999999999909999009099909099999999090999990900999099009099999900999909990099999999090990099099999009999909909990999990000999999909090999000990999999999909909099999999909099900009999009909090990099099990900090999909900990909999099999999099999909990990909999990999999999999099909999099909990000000000000090090090900000000909000000909000900000000099009000000090000900990990909000000000009009900000000000090000009090009900099000900990090009900000090000000009090000000909000000900900090009900009000000000090000000900900000000900090000099900900000900000900000000000090090090999900900000900090990000900990090999000000000090000000009000000099909000009099099000009000000009909000000090000000090009000000009909000000009000900000000000009909090009900099009900000990090000000900090000090000000000999000099000009090900000000900009909000000900900000090900000000009990000900000000009099000990900009000000000090000900900000090909000990099000090000900000000009009000099090000000900009090000000900900000909090990000900900909099000900000000009900090990090000999990090009990000990000900009000900000090000000900090099909099090090900000009900090009990909000990000000000000990090000009000090900000090990900000000000090000000900009009900000900900009000000000000090090900090900090090900090000900990090009900000000000990000009000000000900000000090099090090090900090000009900000090090009099900090090090000090009000000000000000900900000009090990990000090090009000090009000000990000090000000099000900000000000000909990000000000000000090000000009000900009000009009000009090090990900009099000900900900009900000099000009000000090009000000000900000900000000999000900009090009000990900000009009000000900000099000909000099090000909000009090009000990090000900909009909000900000000990000000000090900090009090990000000000000900000990090000090000000909090000000090900000000000999000000900090000090009000999900999909000009900990909990000909000000009000900090000090900000090999000009000099000900000000009900900009000900009900000990990009090009000900000090090090909900900900009000900000009000909000000000000090099009990000000009000090000000900990000000090090000000000099000090009000000009900000900000909009909900090000990090000099000090009900900000000090000000900009090000009090900090090000009990000000000900909000090009090900900099000909000000090000000009900000900000090009090090000900900900090090000000099900090990909900090000009090000990000000090900009000090900000090900900900000000000000000000090909900000900000000900009090000909009000900000099090000000090000009900000909090090009900000000900000009000090900009099000000000009900090000009000090990000000090090009000990009900000009090900999909090000999000000900000000000000900099000090000900090009900900009000009000990900900000900000990009900009000000000090900000090900000000900"
"1887888889778889998988898878897887888897999877887899878999897788998888878877878987889989988797789778887898877798988798898999988897988877889777998989979897978797887778788977888877988878888888789988998887899889889898997898799979888897899989979978977888898898888878898788899989898888889889888888988988888898989998887898878888898898888779879979989998798888979997898799898988988998788899889987888888878889778888779887877788797879798979989899777988778889798889999898897889897778898788877987797889989988789878778878888899887798999878998788778999798888788798878898889899988877988888787"

Returns: "998999999889999999999999989998998999998999988998999989999998899999999989988989998999999999898899889998999988899999899999999999998999988999888999999989998989898998889899988999988999989999999899999999998999999999999998999899989999998999999989989988999999999999989999899999999999999999999998988988988888898989998888898888888898898888889889989989998898888989998898899898988988998888899889988888888888889888888889888888888898889898989989899888988888889898889999898898889898888898888888988898889989988889888888888888899888898999888998888888999898888888898888898889899988888988888888"
"1728335456335478916419389118820290827394202484943566296687185233149766027313831355685153863160497319543226045087088060227896960329540990220029994922502846000354128326598129592849297642015309650222892950996365970233088465006531801938164789070511829884148342967818735768457418602152140557470184646141151205824664866537927769234941379027225070877461939198234609464891321178672600049298322056804610235802948295930805632830363999559194328500030021990036033058699821960780889550612336022704962258460486653139312729568051332581687582675348495202393638993017821884023618973544544543737"

Returns: "927735448735398865769388618769689926787696784872866288878597666579765966656926285684583856659796669537168974997087559669896889669535989669969994862496945999753567665897568886778697576958308845162892945995685890166588464955766796878164779989761769877579336886968735687756718551646575548790086800565505050007007080000058080600965600060057080900000060500567050000005660080086000500000060508000750560006070607065007066065006000009500060000060055000500066070000855005000090070750600056007005600075000070509656060000075665785808700007070007505606009006050005000056050080006700006008"
"1008991081989001000008099910899909010081810900908909919090818001819090809910909008918189900910008909991899999001098189100899"

Returns: "999990990999000999999099909999909009990909999999909909999909000909090900000909009009090000000009000000900000000099090000900"
"910909909809180910000008108181801989909099001891089990108100899180100009099009008991081009810890009999999100900090008108991098109000810900810000989109089100980090900909999909099189108189099990190089019999989091008901809001909899900100989991800100908190819890100090891089999990910080909990990990090009091098991908999100008991800099091899999910908109908099100000000899018999000900999999999910000900989991089999000001981990000008198991990981900009098100900090890999919899991089999990099099109890009909100008999910899181081081890900180109990099081000810009000810000081090090909090080100908190989999919908901900800018918999909090199081908189990999999991899999100000000000089999109990081081899190000899091809001080990999991008999090090990108901899010099908099999108909090001810981809099999991999900809099190098018910890991000909098990001801090009981809999999918909918091089990189099909099001890909909910080100089019981090890190090890108180100981000818990900999099910000899909099190000099899091009990008000009009108919000000998000108999910900990080100909998100089990910081990899909991981080910989909009109089910801908999108108999909900999090991908091000089990180099190000908999999010090080108091990000989909189909090999901801000899009019000900099899990909099991809999900001900899909999991009818018190909899991080189091900890909990010008910810080991909899099099100000819000809100900090989999999990990181000090810810089010089999909910098099108099900910000000009090810000909899109099098010000999900008199989991090900891980099090990990909099999991000089999910081899099099189918099910080091999990000998901099081098901090819081809991809990018999190009089991000890999199090008010081089991080189900001899100990000891080091819000891891998999901809090091009000890990999181810908999990900999991890189919089190080100899099091818999900000999090991819090099809910899109008100909090999099009800100000089918990091909900090009000900089990010000989189991810800108099909990999919998909909910098919980999999990901999909090989091098909100899190999809901090090009008091818991989991000009890909181008901890909010990999890919080009198199008108010809901080099990190899108999990189909180991801000800999001909008009909099181008990099009009109908190800990999190081000908090919909980999010980918109899180999091900899091009000000980909991899999919900089190998909999190000890009018901810989108999099100000890901989100800099910008991908009991909899109980991000000908181009081989019090908991981089099991090981909008990919008099999991981080189198099999991900809100900908199089099991089198100909090801098190899181908999999099199891009908099901908100899909990018991098009108999990991000891098918010800900109000080999910999081090009810000008099909199000000899091009008090999181009891809198900999199909809091908999190080999099019081909890900900990100899180990909901900908000999018999018099180910080100000891009080099990189009918901891900981980900190809109999098900909108010899180909109899999100098100818091900900090089009919999081008990910989091099090909998009099999999199810989909909910999809999099909991890018918100081098999900100090009000900090009908090100810089999990019900990999090908991900891008909919990090818099090999000010000818090991008990190081090810080108099999009100000908918180999099109000899090090918010000998108109000818090189109000098991008000010080189100089189901900090980999108999100090900081000800099918099918190819089010989190989010999000099998090189909991810080990991008189910000089999099999990909099099090990198109009089100099981900009998999901990990891009908999919090899999999909009991890991989909910000089901089918919089999180099100000000099090008990919000818999990990991009908099189918910899900099909109008091080189100009909081801819899099999910009008000009999918099990909100009990009000800901008999018009999090910080910099000098091890190089901000000909000080990180100089999091908099090999009910000891891000908018910090890900910098909189198099910009098189909100089991999908990190099008910000890001999000000810890900900001900099899091009990000080990910008999909990999009100818999198990181890109090080109089199801089990189909909909108000990909991080100089091809910809999999918199900089018000100990908999099108910801990080990919009998099999990918198918000090910890999991909989901008010890099090091000899099999099189000918091009000081008189190099891000089999999999991000008099999999100081908190980090910000810800019008010909810000099081908990190090909090089189999919000899918999190990099890180009108189189181008910000899990909900109890990990100000089100009809999109090008991990900008199098100981900000098198000001000089100099008999909999999999009001000801008999999990991909891908910000008090990018100899991000908100989090900090099099099909189909100000089109089990109819081908990018100098990010009908000918010899091099999801090080099991081891080990909999909009090198991090891098999919008919000891989100891900090008990999999900108919899189100900900990899990181008991890100089108000990910098018181891899999909180919909908909"

Returns: "909999999909090909999999099090900999909099000990999990099099999090099999999999999990990999909990009999999099999999999099990999099999909999909999999099999099990090900909999909099099099099099990099999009999999090999900909000999999900099999990900099999099909990099999990999999990909990909990990990090009090999990999999099999990900099090999999909999099999099099999999999009999000900999999999909999999999990999999000000990999999999099990999990999999999099999999990999909999990999999990099099099990009909099999999909999090990990990900090099999999990999909999999909999990999999999999990099999099999999909999900999900009909999909090099990999099990999999990999999099999999999999999099999990990999099999999090909000990990999990999999090090990099900999009999999099999099909090000909990909099999990999999909099099999009909990990999999999990000900999999990909999999909909909090999990099099909099000990909909909990099999009990999990099999990099090099990999909990900999099909999999909099099999999999090999999999000009009099909999999999000099999909999999990099999999099999990909990999999909990990990909999909009099999909900999999099099999909900999090990999090999999990090099099999999999999009999990099090999999999909099909090999900900999999009009999999999999990909099990909999900000999999909999990999909009099999999990990099090999990909990009999909909990990999999099099099999909999909099999999999999999990990090999999909909999009999999909909999099099099900909999999999999909999999999099999999009999999999999099999990999999990990099090990990909099999990999999999909990999099099099909099909990090999999999999900999990999900999909990909990909990009999099999999990999990999099999999009990999990990099900000999099999999990990090909999990990999999900909090090999999990990999090909999999990900999990990099909999099990099999099090909999900000999090990909999999909909999099999099999999999999999900099999999909990090999999999999999999999990009999999099990909900099099909990999909999909909909999909990999999990900999999999999090999909099999099999909900999999999999090909990999990999999990909090999900990909009999999990909990009099099999099009909900990099990099999099999990099909090990900999900999000999999009909099090999990099009009099999099900990999099990999999090909999990999009990909099999090999090999999090999999999990909990999999909999999099999909999099999990009009900909999099999099099999990900999099900099909999990999009990999999099990990999999999090999990999009999999990990999099990999990999999990909999099999990990990090099000000000900900000900909099090000000090099000909090900099090900090909000000000099900009909000000909000900000000009000099000009000000000000900099009000900000009000090000000999090090009900000009000000099000000900000009009000000090009900900099000000099909900000909000090090000000009090909900000000000000900090000000000900909000000009000009000090000090000000900009090000000090000009000900900990990000090900009999099000000009000900090000009900000000099000909000900900090090000009999090009000000990000099090909999000000000000099900990000000000999900000000000000900009009000090099000000000090009000900090009909000000900090000000009900990999090909000900900009000009990090909000000000000000000909000000009000090090090900090009000000000000000909009090000000009000900000000009000000999009009000909000090009000099000009000000090090000090090000900090990000009000000090900090000900000009000009090909090000990090990000999000099999000090000000900090000000009090000000090000000000000000000000000000099009009090000099990900009999000000990990900009909000009090900000000000000000900000990000000000090000090009009090000090000000000000099090009000009000909000000000000009909000090009000900000000000009009000090090000009909090900909900000000000009009000000000009000000000000009990009000900000009000009000000000000090000099000099000900090090000000000909000090000090000090000000909000000000000000000900900000909009000090900000000099000090099000000009099090000000090000999909000090099009000000900000999000000900900000000000900099900000009990000090000000009000000000000000000909000099000090900009090090009090099900090000090000000000009000000000000090000090000900000900000000009099900090009000000990909000000009000900990090000009009999000000000009099009000000000900000000909990000009000900000000000000900000000000090000009000009000090009090090099900000090000000000000000009000000000000090909090990000000000900900009009000909900000099090909000090090909090090090000009000900009000090990099900090000009090090090009000000900000000000009900000000000000090000009900000009090009000990900009099099000990900000099099000000000090000099009000000000000000000000000900009000000000000909900909000000009000000009000900000000909000990000000000000000000000090000000000090009090000009909090909000009000099000000009909000009000900000099999900090090000000090900090000000000000000000099000090900099000009009009000900990000900900090009000000000000009009900090000900900990900000090009000900000090009000000000099009090900900000000090009909909000"
"291100189228219911801299102298192109930081292002093180210291192002828921020210099991909198319011982201091002290100930209921000081218191891022909221001921111009000982300112381990812909920112209081902002002118992891190202001021121828109922101220091992010202010919901200902001130821383010910018910382138921209218991109920010202010199191012210129902828021130109202190108200801210209218190891212019909229098182212092399000899011129210013018120209181901289999030002029111081310189002399110903980909200001002021020828100291193002190290210192289930010192981201992119009913813080111181"

Returns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
"657376138832762477242981096800357672449335870607465995095471858065591490564706078532955176762997701080233765357327941573755"

Returns: "586768578766686469236975596799686866749274965556758987588465978500705700707050509060007508076000005500600800670660065706070"
"9999999"

Returns: ""
"1919202224102122032022129430298993145008409942521250012992222000222299319943214249905899451300991924932220120232190422203028"

Returns: "969202224096622026966629429699992644999409942466249962992222000000000050000550000000900005000995000005550500005500000000059"
"8889989"

Returns: ""
"111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"

Returns: "111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"2299022"

Returns: ""
"2222222"

Returns: "2221000"
"99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

Returns: ""
"111189919911029130091092101012020901929130022093000103189910930120010101990999119909919109099219022121010089310098911199819120930192820109101103019000830198999992281802001291189110120309912130920109899190111901110001192921830129182318922219921201009121300301010108101182909311829191203800928218123110103001381002812912110210011010901099010992101089299902892081121821110991012930189191102101819309011900109290101019192001212212381281199201098120100101001909011019281209911109911019199912191910102099911180100111101010892028282111110130122009218099100820812130821929301909309081912108190982200119001013082000910038210090111011891001029910110100010101200101899200183101919201081110091022989991110128020302910920201018930999290120099921110310913001092112183181100209192929000992020920829029301120902001891019102092830101308291102913009921928101991903092021101202290110992911109920010208190308190021910109931010112820211901020110009002009219198180210120012289219038213101119301812290911019102130991109218200003103039989991318201299090092091091101010910001100129238919999012019010112820102120028900211100230390810209921092010001101020300009910281112098221902301201181930130003022010920309111030829221091121992289199208201819002102091028030002180990091990110390910130909002300122910001120191110092821819192012092928218112081819991920101200100092901991001290110291002000201828929003182101091210290021121100091930200829993000110009210081200021101030830918022190922008911009081119190221030100101110021091219001020820209018301008090191909020992110910291030911009900919903803011010201019931020891130211019109101919893021291019121100811201919019910919801892119010009122991211210300819991300119921830199909099902010292111890130210381198299120131918130910890920211112012893892900203019992901121820100100211099022101929212930091120300092919181100900911129920011011109010210111191102011102003111109991930120892109102209011021290009999922820190090100189113900921011011099910991801280012110010930910130038120192210100080112020920000930899300930992190010901811991301909021822019200121001119280011112182011190810913029011121283011022902010092011910280209001110080018920001200810012000910929201901089290091192008110000119110921121210991202003891029181023090009098099119028209110028910110110303812119809191199190031028211891990218921031000101009920189229929130139010021830013811211011209223891209102119099120299102199928001219193002210182030211101913002920990120019122110219023820020031119813002301020002020110203028101102810110282030101202020992109230922991103091102823190200122192091110001930921921110203028001230929191210181999130099301200191010200120822300112110112822093902091182202192992308102001010100003102090109920910282103108099119191990022830311101091082101189281091199199090008922029182010830920120010112113011190109990289919120108209010810192901901012091899120992080019000010090218211910919110921813110938112111093021902909110929011111018191111101110192013901090920219912811901009020002910300893009991903011119000090229201282102211893011000021018111810011999000011013010821209100109009092812999991108112012189131190020891202920001111021021110921009111101300101110901101992111911899029191819010301120092921292921012099011200210092802121819992020211820830812011111301910891002291902201199398028310202110801129310910999090999203901991209219992899300211219922200990091130801991901980091910212900101192118113030980921190180011302120892102992010211010921831980901001011892019301011019902090919109190009391089202892011090120101111109010103101209191129089902089913019012181003893011102099129000201000109929993899202919110101113108210120011029031082082909110921018101218120909910930099010121091919992818911290281929022019192902820090119102121001812110221190892211908310009919009919020992182118921021081909289199208129912120101293893110100302010913030992202928020120231901398911128201000999302011110000920102000102908302310110101082091131092811101092011099992082292210109991010911009020019010198120290220009983031030999280300020002130091012018122909291121021383190208122091101218198091300921090001092011910202811102103000111902108189209289210992000011930000109230121003020031809910281913000921931118289221093819031190910909911001120293182892002019900092929200209029039011130109922010311102000091218200003091009201901930301181211010009812019100128900291921039099200910099121101000090200993109910911011109000282111899928921021091099139908189021929089290920292913892122892899099190200912202101111138282020901009011209018012000010200919121999191012001111989128192100090921010100091299009199128128221221220919191010218201100911089292810031009209092921020000113901128920810999309010019902198901010901110101121922810028220931101022290281901830119193910301829109189101109210212191109112991223090239181203901929111090121911108100989102002122000301200209118120911818130000099093900081031109101092819203001192998012099000308990012123180300189091990991199909921091091203001009030001029023092192921892012110019020092192011992009110"

Returns: "55599919911029129591091595511519951929129522092500052599905925119509551990999119909919099599209522121009999259999911099919115925191919559095552509999929599999992190901951195599105115259912125915099999099555951109501192915925119592259922219921195509121250295505099095591959255929191152900919159122559552951291001912912110155010955900999510991595999299901991991115921105991012929599190552050919299955999559195101019191951212212291191199195999119599595951909005519191199955559911019199912191905101599911090095111095959991519192111110125121959159099099919912129921929251909299991912099099992199559951012991999955029159999555955990995529905109599959551199595999199592551919200991105091021999990555119015252910915195959925999195119599915555255912995592111592591095159192929000991515919919529251115901995990959552091929551299195552912959921919101990952591520551152290105992911059919955199190299099515955059925510111915155950519559999951959219099090210119512199159529212551119295912195911019052125991059209199952552529999991259151199590091591090550955909995595129229919999011519010111919552119519900155595225299910159915591959995550515299959905191111999215952251151091925129952521955915259055529929215591121992199199199195909951551995519029951590990091990055299955129999502250121959951120191109591915919191512092919159111990919991919551150099592901990951195110195951950195919919952591550591155199521115595091925199929992995059959159991199515550529925909021595921999910999991119190215525050095555015591159950519915199959295999090191909020991555905291029955959900909952902955955150519925519991125211009599551909992521195519115599911201919009959959900992119009959122991211205299919991295119915925199909099901955292110990125155291099299115125959125909990915211111511992991950202519991951120919595100211099021551929212929591115250091959591099950911129915010955559005210111190551955551502555559991925119991599552199511021199509999921919599999599599112995921011005999955990901190012059955929955125029115192209599990111520919995929999250925991599959950911991251909015921519150115501119190011111591955599910912529011121192955521951955091955955190209001059990009919951199909511500910929150995999199591191999109995059555921121155991151952990519591022999999999099119019199559519909559555252912059909191199099525519155991990159915525999595959915099229929125129509515929512911155511159222991159101559599115299052199919001219192952210091525155551912952915990119519122105159522915019525559912952295519951515110152519101101900000090505000050505000550005000995550500050900595050000000500000050005000005555050509000005000000000090000005000050000595500005000900005000555000900500950500590050000000009050005050500050550095000000955090550509000000000995000905055505500090505590090000000099090009000009590500905005000055000000055595050000090000000509009050905000000000500500900005000090009005000000009055955000055005900555009000000000500000909555009500000009000000550005000500950000005000000905905009500050005000900050000000500009000500000050090050055900055005000009000900055999050000000050900009500509009500900000000509000000590005590500900050000005555500505555005500000000050005555000050000000005900009595900005050000500000000005500000000000050500900005900000500005900900900500000050000900050095950050000099009055050000900000055000000000000050950000050000000900050000000000005000000000900995905990000000000900550000559000500990005590590000050000900550000505055055000905990000005055900000050055500000000000000090050095090050900505095000550055550005050550000000009090000090000059500090050900505550500009005005005050000000900050000050550000509055000505509505090090950005005059000059005000000000500005005500000000909000095090000000500000950900500000000005005900005000590900055909055000000000009505000090559005505090950090000009000000000550000900555005050055000505000050009005005005950099000009050005000050505550005000550005000909050050555000090500005500900000000500000000090000050550000055005500000500000599005095000009990505505000090005000050005000000059000950000005500090595009000500000009099000005005090005500505955050900000550005055950509090000090055000005000000050000005005500500505900000090000005000005559090005500900005595000950000050005000590900050500000000000005050009509500000550000055055550000500059000050095050050000005050090055500009900000050009000000005509500000950500005505000500050000550000955055509005090055900009000005095500009909090000009090000005000000900000900900000095005000050000000009090500905050000050009000000500050000000000000000005555990009000550000005050500500099050000009009000000005000000000059005500955090000905005500009500000000050000950009000900000009050500000599000055000055000000000900009005005505500095090000905000000955005909550090050550005000000550000000000095009590050950000000500005955509000990050050000005050050009559005000909000000099500900090505550005500900050050000999000099005009000000000590000590000000000000000005500500050050009505000500000500000005900500550500000500000000000009555"
"1922281119832929102180111892925851391050284299310431250138252212591301904425082302194043228258232822528040292224450929144493019599130221992059919528932083122942502823089994591912131992220910201043838912149232901929183201409508113213210912220890990300102240902328313291184409249938391182904492302014521231301051384931923823222982313909002129925199311138923129925125129923212952214220231239029910292313201184923212992293101220111314040092938218582995859915219300000009192101321931121301292224321512500285143022022002118099521494094499990902244025141894301522922120300195822119203100241001032122912111029309190921149383129212103009202002022989319404302800599089999311228251923129119949095280431009904211093193129299438223142101302081845102308389251510999122110891192328514299020925013899941129242942243002892100139213899039084499512029211949301925283199389991214005122302851423192901280932132193014205920145895143130028181998122151223283112823109942209904199090213281831232142043001992999598308112313150803843992138102012019228243919992952202015210249301191938499942952289424910193152021243820519959229122931903219240243899994293011802909191231312301219292001492520912450089184120000143912931112312319931444302289221212231322150124244023284424923102410089412829923131231911292501308121249398113015290143840321598520200820229502130201220223081199383220129224308322902298223190232199941201950221519422319442312308938119211952220212929119223290894114925811231043008031422043130200891010921138050192431452081124931031301929321930291230142322144383210290941911020892929999411321599021958314904449938093221409231924903803121199295208112019929028312431443102929411299938238429931211520902228450001204952141291191993201999452901423892439284293141292209282902038441221999992231249031993019300219929458520020220143122922221014240422949101993120051449232831101302280422222944994322982383912502008319430922220229001314910143829043914458313911195090220281219432812001222249501313020131938319242210213289942101119302821138321449313199232132193081020228999584492514128382381830123100222024381213138328100201240091900131320891838003912100910993291300219111150132130121104940209911431212131911184204025915849439283159138209242308410219302984328909993829384382049231299942500292020210218430199521313158290244995892320012239892293022002194052911028220231249108583012924310119032140229932194499290490320200825091420309120230852219222529002102431900250220121158251191992300028121452011123011219049029432120380312242050849222222958940242312182032124920941021119231120145211919992300281143851032021942010124212200914223022158922032892025289439002012094092994502129922052121010112429319385890943122023919129140502200219292309822320012308499442093851313215001925802122020291994249993122940382582938299910912599193021905892242903832851392824958528420402581110132103125109902049411031932131951111021993291299128990328201838109013132008090043201991913831321182420222011231938182383910514294585000922019189302132123001312945213831039193011190250091321902243013830132019313194942223200119125021192022089501128313844528240938251909513200922022228925013900194328382399212499449222224192193191139122945140031300190949224042519022229231252022020015844930021993019300120943122300000221045820209392902291051292592824308225209145000201300281291052149403199945922209015103129925823829993104929211245124313920929800311901493001031218209430122905221291829944409513850220985213104999929309019128049092121382452212251923291930212930193121129431190145124301941831029119109001931240225121899241123118429510509091223010929322022150103011830892312245012225015221950201050002122101223992209213892422932021383001189222023201932194922039002015985212058252091519311982943211893194293110123131229939105089904211229424591220442431952213122321023092192445130012312311129328252000010581089944329014295200292803192313123280909218119292500008242043021210129232922850014038243220151301909425092149249995830281192942121520202149300028243922800320191832298258218951312311893984999300199240252123138191322090980409902249911239111391223152211998181919931251508452028402519302132129191009301225159192231400521100083001391430192950102920314994590821008322831990309199242249242931050008319429020992515912301108912210999115143083892211458190193190251223824992931301291102409901124191490950010931230143921113000090984019192405013099220200202899212102931382951029102892921112109232121199042011203010238501992032229215192508051420442209099994490495214991812200220219251591994315212422293193211130213190302899999993021529858499385803829290040513112021011292299321229581201312292129920823122022522149321229931431429931230831113001429932200908312399221238230129583141193123214520192294409381283829942904581291313912209042211992099109022109121321311894905201380930209122952110838241201909022300132110284500089239194249231390130915029840300221932985019294452928944422292041914239123843921240502192389424410193284322143831943124112992591941283158429308110180212929139811192228"

Returns: "966690609926969602090060992924946296049694299260426249629246662496296904424992296694042669249226922469040292224449969644492969499629666992049969469926992622942496922999994496906626992220909696042929906649226996929092696409499062662660906669990990299602240902269262696094409249929296092904492296964466226296046294926922922666992262999996629924699260629922629924624629922662946664220226229969960292262696094922662992292600669606264040092929209492994949964669299999999692096266926066296292224266462499694642966966996609099466494094499990902244024640994296466966620299694922069202600240996026622906606029299690920649292629206602999696996966999269404296900499999999260669246922629069949094690426009904206092692629299429222642096296990944602299299246460999066609990692269464299020924962999940629242942242996992099629662999029994499462029206949296924692699299990664004622296946422692900690926626692964204969644994642629969090999066646222692606922609942209904099999662690926226642042996992999499299062262649902942996629096962009669242969992946696964660249296096929499942946699424909692646966242920469949669622926902669240242999994292960902909096226262296209696996492469962449999094069999642962926062262269926444296699220662226266649624244022694424922602409999406929922626226906292496299066249299062964699642940266499469699920229496629696220222990699292669629224299266996699222690226699940696949666469422269442262299929069206946669662929069222699994064924906226042999026422042629699990960920629049692426446990624926026296929266929696229642266644292660290940960969992929999406266499966949264904449929092666409226924902902620699294699062009969969262426442602929406299929229429926206469996669449996204946640696096992696999446996422992429694292640696699692902029440666999992226249026992969299669929449469969669642622922220964240422949096992620046449226926096296690422222944994266992292962496999269429966669669996264909642929042964449262960694999669690669426906996222249496262969626929269242209662699942096069296920629266449262699226626692990969669999494492464069292290929622600222024290662629269099696240090999626269990929002962099960992696299669060649626629620604940209906426206626906094204024964949429692649629209242299409669296994269909992929294292049226299942499696969660209429699466262649290244994992269962229992292966996694046960969220226249099492962924260069026640229926694499290490269699924996420299620229946669222469996602426900249669620649246096992299969066446960622960669049029426620290262242049949222000009000000050090005500000000055050005050500550950000000590500905005055000000500005500950000055509000005900000590009005050000000000005500000005500050050000050090900000500000950059500005500550000009900050050009000000000905050550005000900055050595000000000500000090090009000000950099500055000900000000905905095900009059000000090500505500500500000000005005005505005050055000595000059000059000909009050505009000000505000950905055090000000005005009090090950050000090000955050090005505500005050000550905009500050500000095055000000050900505050050500000000500509500055095055090005059050900059000009005000050500955055559000050900500059090099550000000000000095500500509500000500005000500000000000050000000005005055050050900000055000050000500000500000000555000900000095905595005000095900009000509500000505000590595005500000500000955509050500500000900900000500000005000500050950959900050905000005005009000000500000555000900000000050900550990550500000000009050059000000055090005550005000595000550000500500500005090500500005000905000050009005005000000500900000500509000050009095000050000055055500500050900900050000050000050555000505000005500005000995509550900000005055090005090000000505005500000009005050990550009005095050050990000550900500000500500505000009500090000005000000095000000005005550500055000095500000500050050050500059005000050090090000059050000500595900500050500590000009050000000009000000055000500005955900050009000550505005000000095500000000900590500000055050505500000059000955900050500905599009009005050050900990000000500000005500509095055090990000000000005009505095000505550999090950005005009005059000050005505500095000005000509500005000055000090005095000500000500000050000090900009055905000009500000000000005000009050000000000050950005009005550000050500090900005009090500500005000900000005005000500000000500095000000050005000500955050000090990009500000050099550500505900005500005090005000005900000505500005500500000005000050009005000005559550500009005000000000000000000000550000905500550550005095000050550000000500550500550500005900000000055059909000090900900000000050505055005000000055000090505050000059950900500000055500055000005005000005000905050005000005500909050099555009000500090500500500550050500000000090590900000000090595050950000000005000000009055500055055050900000505090000509500005500909000505000000000505500590000090009500000005090500950059900000555005990050000005959000000000000950009500900955000005500090000000500590055500905000500050000095000590509000009050090005959509905095559"
"200222211111202111010220021011221111211002121120110210012021020120210012011021121200112111122110120022010111202111112222002"

Returns: "200222211111202111010220021011221111211002121120110210012021010000000000000000000000000000000000000000000000000000000000000"
"211110110112211122122120122211101222021100010200100020001200120200012211011001101210201212101110212120211010212121112112202000122020112110012101100110011112121100001112110112212200020202012120211201210101002010122102121111112222112210100112112120210121010010201101210121121221001101122120021221101100122121121012101102010010121012021211211001012211222211111121201221010200101012102112021210202020002212211011211100001121211110011001101210011211020221000202211211121212010112021212011101212102012101100110112210002021002100020001002010001120222101112221021221221112211011011112"

Returns: "211110110112211122122120122211101222021100010200100020001200120200012211011001101210201212101110212120211010212121112112202000122020112110012101100110011112121100001112110112212200020202012120211201210101002010122102121111112222112210100112112120210121010010201101210121121221001101122120000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"1667869986559865875998775979677787757759557857786775659977867665557869767655677968999767777766566676759776776755896676776666779788779886587988888967577866776675557777676756756775999679687879668969675756889788787786977967786765597558867667996978966756787966886877598966786757769658795786756768588756778875697677976877768788976966658578766989776777757575775666886777898868678888667756678768777897865797975688587776796687787676768996866766776686779998877759775765777678577957777758986777856876666777679777687687669567885558778787877898789867766757668576757675596778987665799757997789668797756676769676968966879758856758788866588887877857767686865878897868665865667677886587877695777597866879778677775877977675768966556597586669789757768597757658878866879787677768756888768797986776767778875776966778869978566799877865886787689777787856689765965786599697776887679577777676869666576877867689888789655756979779857799667695788966858979768586578777779569876687875667576756578896885577768856886775755779585766869788567767896685577766586695887878656697678798685875677888699685887676967789676885576587677688667558776897966656659765967688787676766568876868888696858798875678776757679995866967777756877777595679966566676899757788778666799875789689576677677559878967796885797858575768967778866577658977676885559768868957678685859797767869679787587775778865866757878798876768676656767787688885778655867887786777756995766567688878587876776888777876557578997789697775578585878977887779897788667677796977765567799569677768657578766586775565665767857686696767888578798688787767767577878978768966887687869776877888668757857768587567796955768678778768765886768578866975875776787697756868878777968886786557755978676598775666585875597576677897786568768989787979687956767967668676787697977779576655868677778788765778756666777786676676687899969877766875777777597767986878667977875675687685587678776956577587898767976866887769757697677685677576968868769687858798957877777986555768555886758895887797875556787898897857957757776666966886677867868856775677678897869777698765666558577675879698787859756687777656989888888767656877689777985888568575778885676588676757897587796876678866977696767778587586777797786767758667796677879987878858656667788666777766666867777786987586577787595787779798878876658766898796887787566666777978569657878587967777778877767886568576568587675776678756876655656775796866986868865688786977676779767976765665785988697977665977686786776889877777679656699888767887687886787786579887778968888586667689867657756768986766685888869877788975687787688786788767888996656976777778988677687686779566779796889587566567679767977676779687886568868689668697577656556678657876677576785865675865688767778877777769785878756965879777666665787788697898667856678878897977787595787775685789687777768666667777666887766656858878789978776697766857767687797777685785877767696779668876678697785798757676885676588877575865888589777986778656767888888989656777786657958787896978576775855666567896777968798876776577658868768776688669666677757759758798898787655578797788598857688555867555689777778759897858786967868869675776586776796757967788668679767898785775659677876785586786576578779766878689767795777777578667778969998786676676687777666657877567887877776868556675977779796787676866769767659786979787989867865687798776675795578585666577895676879557755687688869777878868657796787677578579668875867688567867877876867559697765785867758757866888778677968786788669867879878775767767787886897875888767696686758767566565577685667875756867776965997765567779697776766887798977788779878585875577796987799875755678777888677678785878886765667599657777687788768556877588886787767656676867678897878757668568877577785787976968767797958586876759868867955588676779856775668877769867575858797588697769878955776776675986987578997666877887757998676665669976595777778657777769668599976757677876578897858696888868678865667676787886769567956656669798677855766886776785675588676987769676788586996888776578586897876796656878788596685667775586698767765887968667585977557577688658867775588698875657675766578786678965977777875685867979858669887596766997758977979657556987888986768778675666968676777775976788677796995687569567986658787777986787688568778997665879968877669677578877767677689797867888657867776787978668878856757795867757987966685795655669867576779778577776877978668795777596778785688776766568566868798878568686767758778788885668887857658857978669869676967676657797866987799757997566789877695576757675866757667768987898778787877855588765966786786777976777666678658777689857777759775876777567577957778899977686677667668699867676787786697677785886579797568798777867876657766888876868898777688666577575757777677989667875856669679887867778679776796578877657885867657687597856967757687669895778688669787657669879699766768855795567687769779687787887988657576969866978786976999577657657676777755576677668775769888889785688977887977666677676698557677677957676665667777767999869776556767968755566768779956577687758755957757787776979577899578568955689968765"

Returns: "888989998779987987999887989888898878879778978898887879988988887778989888877888989999888888888788888879888888877998888888888889899889998798999999988788988888887778888888878878887999889898989889989887878999899898898988988898887798779988888998989988878898988998988799988898878889879897898878889799878889987898888988988889899988988879789888999888888878787887888998888999989889999888878889889888998987898987899798888898898898888889998988888888898889999988879887887888889788978888879998888978988888888889888898898889788997779889898988999899988888878889788878887798889998887899878998899889898878888889888989988989879978879899988799998988978888898987989998989887987888888998798988897888798988989889888887988988887889988778798798889899878889798878879989988989898888889878999889898998888888889987888988889989989788899988987998898899888898978899887987898799898888998889788888888989888788988988899999899877878989889978899888897899988979989889798789888889789988898987888788878789998997788889978998887877889797888989899788888998897788888798897998989878898889899897987888999899897998888988899888997788798888899888779888998988878879887988899898888888789988989999898979899987889888878889997988988888878988888797889988788888999878899889888899987899899788888888779989988898997898979787889988889988788879988888997779889989978889897979898888989889898798887889987988878989899988889888878888898899997889877988998898888878997888788899989798988888999888988778789998899898887789797989988998889998899888888898988887788899789888889878789888798887787887888978898898888999789899899898888888788989989889988998898989888988999889878978889798788898977889889889889887998889789988987987888898898878989989888989998898778877989888799887888797987798788888998898789889999898989898978888988889888898898988889788877989888889899887889878888888898888888898999989988888987888888798888998989888988987887898897798889888978788798999888988988998889878898888897888788989989889898979899978988888998777889777998879997998898987778898999998978978878888888988998888988989978887888889998989888899887888779788887989899898979878898888878999999999888878988899888997999789787889997888799888878998798898988889988988898888889798798888898898888879888898888989998989979878888899888888888888988888898998798788898797898889899989988879888999898998898788888888989789878989798988888889988888998789788789798887888889878988877878887898988998989987899898988888889888988887887897999898988887988898898888999988888889878899999888998898998898898789998889989999798888899988878877878987877787888879888888987788888788887888878888997777987888888988788788787889777889897889788777778789878988787889788887778878789778798788777777788778887788787887877787877788878888888888879887888877977889888777777888888798898778877788888898988888797888887787889788888878777778888777888877777878888889988887798877878878788898888787887888878797889778887788798887898878787887787788888787877888789888987888777878888888989777888887778978888897988787887877777778897888978898887887788778878878887788779777788878879878898898888777788898888798878788777878777789888888879898878887978878879787887787887897878978888778789878898887887779788887887787887787788889877888789878897888888788778888979998887787787788888777778888778888888887878777787988889897888787877879878779887989888989878877788898887787897788787777788897787889778877788788879888888878778897888788788789778887878788778878888887878779798877887878878878877888888788978887888779878889888887878878888887898887888878797787878878777777788787778887877878887977998877778889798887877888898988888889888787887788897988899887877788888888788788887888887877778799778888788888878777888788887888878777787878788898888878778778888788887888987978878898978787887879878878977788787889877887778888879878787878898788798879888977887887787987988788998777888888878998787777779987797888888778888879778799987878788887788898878797888878788877778787888887879778977777779898788877877887887887787788787988879787888787997888887788787898887897777888888797787778887787798878877888978778787988778788788778878887788798887778787877788887788977988888887787878989878779888797877998878988989778777988888987878888787777978787888887987888788897997788779778987778888888987888788778888998777889978888779788788888878788789898878888778878887888988778888877878897878878988977787897777779878787889888788887888988778897888797888887788887877778777878898888778787878878888888887778888878778878988779879787978787778898877988899878998777889888797787878787877878778878988898888888888877788877977887887888987888777788778888789878888879887887888778788978888899988787788778778799878787888887798788887887789898778898888878887778877888887878898888788777788787878888788989778887877779789888878888789887897788888778887878778788798877978878788779897888788779888778779889799877878877897778788879889788888888988778787979877988887987999788778778787888877787788778887879888889887788988888988777788787798778788788978787777778888878999879887777878978877777878889977788788878877978878888887989788899788778977789978877"
"292009202290909229202292020922002000020220909092290222200920299292920202299209000029220009299090220200090999090222099992909"

Returns: ""
"989989998899889988898899989999888898898999999989898898888898999998999898999889888989989998998889898998999888988988988899998"

Returns: ""
"310459142311220089502844929920022252092908293829021138112099120284580120283141920989203131922920223012422018409992315290139901052982250213212042310912201419291585105022015229009289392028222512384242058921129223810912941211100399830112902129310443084300902192925022140230102940929090404999999404090929049211922052219429302208992589244112932209111939982011121049328918222931030840242582314223920283092900921520219411585292805202109112240321321942399141209832091512299905800224319222029230131203099028051392010184592010990311831020938293909290142220029929459195090021112252844112"

Returns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
"1228509"

Returns: ""
"86671269606016497630996196199495914639463155353727539042298572293806410151768504343183358572500556050336624342764151577974579096375122800215529692074926219138440554450778261824189637900757067488062611615438149849544673332084771474458815787050679506131826491181408491582190105039396895884230153472062675768448139983666433109576123203822355147110116371052623581705350598068703813127745857590042823678634051599193708365691992399152505627092814089982894479241615798199873924246621961197520832304922579264371231558572564838703037013912008685922613465198170201050744823057018457155407086177648541570959804405900610724097045897409275354732245114695379616274915974646399832998578089059475615063340280389084858395119123806051082501591569060388598058494597578539053446007772923511193463109884229908618499466538648740490878248993135579366226735992367328183716991116807846466421481165611112367871656507662865613958239403037878917946941941042451954576350920544547158268668265940768398223805375722344796823344718954142945474419357649532593140479368608173545501090623847961048726165562540401625652992514933576649957005503021048662051409286603546312803952230013966602061435241858382431970493031907699928612423046851980676400357975962992818471391967736765277562119272337562962695238567101690045691735077668878565319058895283992796294367206085102032392147700740238195500591612706565899950618762413884210705323479993162813503218986596157777480382478785717200935932175931041192825329619338134504200509992867213128503687915010944268616980072362173501226562698969024683314373830311918904801217805528668267575602854699402823301158193631304822407207063608432459329953553400452141653897791197032172661155237274486587795669799069182043006509826299461736316271660171314174038545212375361280807757737434195388617519470582794242731574721783192874276971518198702439075301371022713827160298258617287113342694544099901275283725974939607603980469378575390273571484271533270733949600786897939052609180833886117431975017006217762319276288347974327208351507506096129583378940039344554766448346031831510053285822911023767973329992697679869063731627351341714048594884916247023265281254195302327671436355272451735201863668453390392400164963712086261892993996021944632411910614706118993277429403441682311823618758633900814871001483974195800811473182180658723121682996755965427251697967403851459006556130397755618414745386380977568552203693107163403878157036499497027478004087397728726196444649978304627976599609849523376816885210435826844696014929821934919524440468613721554029997393049790378637990615567024525353219884039823436067861753397336736711195120290872900531579521251601453529999298888607573870275462309102846790889241863366782676118735704789892066897138761504492105231858649084686878464528755919328376501610661949092924863222487211069925349970388096451265664912138815596129026984118559362617239067133828421281597201573869415128029205020468758359454783535533734696935129548940621827873506200498211477644035507654637599322586565568447497267473817489960691813636976644019909928935982543373061867839101576474725762908163516061624518545781858694874835674423791364333820973328076574736798099792987230583155695511230669421220543504539991206961713641067126465047162502218417570264930194724737039193770021864975350758905356155215600065426810522052113552876901282497801303634656632891586216321579315870333905237295216681844445946771209635303526471642427393807874056363444475308544008976343093035325690164715097390876802619566093357602930836322936865476025744320639239563402393801619020579574491517835786820890208717649117342434413037338499171760195870613765673953255620833287537209369416689744147851185291898752238954203529638153451368599933116931104975543400646913951518799721954901860182918802397993272992167292102189904412721411884458570239136482225662132671558797065600758817483005935128995950370283181034452931241192559570306440372531056868473765096671095907557926350137022918406138146852340451470214300190328197526799001315219173419059711081130484329146696196999514547912049988209747038500976143835765563069337712892508473973446992040941167501146013527005174129198493169546597831247494522056665380511754072084527008945920338906452143501320171542779901751417971228845907249935205859041001073760359919330553676830278855157623285856838510421630544132704992086789276194264067327024944228532250795966579637864412659726176465708024259239282538934519814719176968105382056769781097424550026451639676248890368855737115537255521269915654724442891541502241510682793955708382763620900796443876435662023025396461841399845305601044107787498034710244572317584074127335437343928662716483149741015375111571467838785715588305796479817770095346959063467174705764270780723014618050509616491980968526593898908305401000595609715310982437363225291032680167279351709896201756245142209610370450638819637255222957869420572651344830146115155357169601263693411232341202380245356428613553044104052133573507597860080686558833107415727927735741523436472022038418"

Returns: ""
"999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

Returns: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"19191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919"

Returns: ""
"199000090091990119099900901011010001900909001110190119910909110900009119999019090190109091909911091011009191909110019999100019100199009199019190199919011190199900110090010911909010109109111911919990990091099111900909919901009100101090919901111091110999001911999901019901191090011199019001119991011000190190191109091100110900900011119099001991099999119110110901999191110991109000999900011991000910900991909100009010011900100001990901009910909119000991990011991119001990101109090191110191910919001109011910091009119101109009919990090090991110010901001909999191119910100090199999"

Returns: ""
"988598855625084300732622443218202654324203290590563402295730145553168491769069965515298288617971816742921235209861538760883041096349495554301676399395797005589676221857644974184602618383664719131734285039597422334912792563392962034920035887238769116950687447606409528752842845858053780482581442557453413073831025924170022494381163669519776124752041621717513832237985444671129589091531654898956118038671090897065701591081494532325675450084097784021112472170998057956398324303959174163900448380285785564346326672510309537794257906149526014581009736615543606703261388670483097560225138018958980023808902594859096139598487415530702130074919396144728596257979943051525514566477343325158895656554513099474596584046734506243853188662334031588239535696619845230321487799026054551975349134774247721997687471846607746725970205175720748645577536377349368093102053053374828156748669128033169045852937762256450815671082697363289993622995037525192103715324033125382363324771608022794515016883352963132346741039636416757907139551758610461899921105904882377280123101485693047405615470426266993158748949590347759551956325369347233976187584290698763056005702723497478618942103851640423616887303634044101969164615980401195203259394685422852867166390865789981956727008407659444415604694316704328890746130055679573444067464592960720292569974468589049920568373368626939444181159121617842800308573170522973031813391723977835392181519781533417496669525427974197163125019605439853201757242154394705895722221339326741407765388517213921532085220476396029288523446472033238926046855681012300824294969867951338403943651308984803791971515448159811682868092918961930120688776580982303406002138443585812753865592182471936023923492007766650446505354417198704983148836650583927388378462874052463776033755163056968409193995986363448937741579752755079135967142621559669157239415461730088455747406838691543766285660332579487952707027987003240234667986435543132206940745297035553704306804686153397157342456494920562131502977580255756336612084356968496003564325656123956231334522857116888248995551949364037682453629629226183259596458316107268201843307312293762616002202307092422531855910121752965959639736704805962765848235251401174310598907323939740304822516211071512416848981017015939651579950562814848879428766370534114477407252480047910273604708206347477689283239425256235092350998390172458223304401702288229638298133701742124449404202391498850916617770201053149666839834236050644481640658641071477676671633379898283185810131752384597806374248231007691282798984326166785685170036956047074447040731538038657051251101967825619048905083312403944521148106341782945832782306214402232864171993800054191423652425041381997674653601916405383008849985142814773420435172567923978947419255060075255840609720079947724215061212615217513036939422808896112372204053432847578160597506737035959570357121008559235224190712201309615277302223702249191972701612854685962291632925926344287731462949156489951789710659325423232648430557524455400594769752491117633548552986779195131166118494664242762683361586508703397445629702557038712230245643590866333042299689830707248794876333065492666346196739704638643891027253524941662856966126241759630980448356875147838844462689599401903969651262448430667354250588154884783728385165548751290496892804553504654055567810185319330639165271296558467109576433842199604403180184577897021029258919389867287208061735605170188397489913047339403943050758969502438002220086558641519843330263655225792930583784011591225218412804893477714037623944111238587607494450152658202348043515920422261702370824425965704724335088915181293527780427183408229280315171265903097348815121061081443939725864472865020049895765568976282126960295463770443484886560031547988933397713386505525344856813810716759278988658093660868348313587493862311502103979626460870201440426402688715325047049401139826873795416306609660257896103376782570322743964622559156066644095958856761299771633975506593850286595101320982683188509600128999165005858254930709767614627039157633331259264377720504498320796266532373183531330422417411192524640500316390092254787380176508153662256740248649971230722065956561828473251351201291763952673734885446847116582501970626656705748274686700128742377440843580254459629898785122932449026695445941786131324257871358353604447541375695475000314465656588960533333765765404634061338980851595936450603918481031197134523684896040600958496198907429979859919841512154800294976794162297695346606736910085321614951608861398834913005376612643476478572093844098470381860403422793660849800072165311020387800489945567623125505081086206470699190175740820559898457235091876031076454479742238404718226041147530676916066461084395120971428630128470303454845334176275177340958637348247934914595754687049720867931788540920530258294355298308444223696039483427240916466493806296471479446858221576995509698593903576213454494944691139289067845059001642119346519169825881903515459971957194771255542137483303365086181302533445312812344226227092589525657905789"

Returns: "987898785564994295666866776659652577664203195585482796287865145552667786689569957757698197867966815876865675159855777955882975588349494777651675798788796954889675666787644974177596559693664668571727284979596766734856792557392886967919535887178768566945686747598758768746772778788047695476576376479383356987765965863669516787775587589519695564746535866717457771637977773865569579585766654898955567537885995896564896585575794526668668449993597783515556466665997979956397667697958673583895377780278777864346268886459658769793687855649468513875958868558543598696685787869782597485167577968958979963758896887788595579598486764765696569574868795573868595679979876550765457788469276664588888585854462599474596577538873798643853179656327526587678834898869844629665779798965983776975348573967678916996878786776556875868969697675665677837797476376678759586596547052767767655878589127526588975846937686685775757885996689356699987566994536767686553714667966564776682664686599966794457966796752956566278870979628365957907078776758559756899860598854881776679566595785686977398557769765686992657877978885346889551955668369347227968679577690698756985955652667497397818936597845835423566886697567977596968587865979795694652658787685366776787085785788789896886668957757658737715554687658697668889938569984878793373567383886959865196869887467888979915487687368566939373675589060859772795258566585466972966757295867977767696595759975766766796588817769967696656617968854779776696756641577787655797922165739326735756964788459163866466585169796388968687816746386966638918538784875961699963694969859945678353937645658984797786966458439589756682787996868886869569888775795976697355996638377578806883858592176466875523917486957765879775797677359198697982647935880583866779778456994052457688967747656548888358693995986283448877741578876747998568888576865859659656678715386669588378738798837886543685684889666578787876898967986996679627889985775542566656879874696968477697698754685653388657271756494865561626496988879648748668806584286967788997487718655563878666267766856558887678987846878687529682447568869665682659588387658598688196842698661692962565952151656586766766855859565876965959579676654798956965777627645796173655598857263939679654766758656065756766778975966958938876499950556814778879368765685473563788757246779977859673553858155746768889192679424648227586745997789666787622697751652287628878289572895936567378797652385798845865867769695546579658779774176045644475835588635985776896666566779897676595759566746377897007600600565050095606000006660500087007580500070508500000500060060060800075605505000057050500007500055606070755508508065800067006000050056606006076505006000506505700806000065090008807006050058050006050070007500056886055060586000060000070000600000080577000750050500070056557500555757550056060000060050000556000506506706070008500700050060060000000678555050000567556505056050050050008006056806000500085805756070800006005065957060600000805676070507700075000855000657660565770065000706670600707000070005508766700706007889500505000550000007070005800005000050806600670760006078060055565000066000877606065600000060808570007000666077006080000508000806800770005060570007065005900007557565870765080700678000000060000080000000005050080805605700660780600000088500006806060000077009005000700000850776707076077000050500600005060500600000700078500700660005500050606500587000008055060570050690080000550075800750500500600000056500600050066500800000006068006050508070805700006660580007607006060700086050005560550050850006008056500000006550008790050706675006000505670066057050705605005600856707080007056667508957585596760000658590650560000650585600050500070857060075505070000060000686080500070007000780007590558000607080005070087008070065708000066600856600050007607000056050850070580000770506080080670650000706006055005506000057675000505660660606000050000508500605500008080000650050050070600000006600805700600000000756000000078000507079078005000085066007750700070600007505655006006000050705060000507050000577060000008050800060078760665600006680050750000650800580066086506065660656000055505757005000650600095600800680587750576075570000600070085605000080078005060706000605505605806076000060087708070550005705000758078050070586808000508865608065000000577070060000807556006000057797007065000505600600900000006707068705600000000005050007070700075066660800877650067005660000875000068075006050005065500567056000000065005070707500050060000000050065750570005007008006575600800000750868050507005750005050075000867056050687750000007700700006070500085005000606656000000870000505500655505000005090000700756500007505500508005000590587005055000000000567505900065508076700006060650000557505500065080000080675506607505005060060560680650070870660500600580600070760070600067056700007000500055000060000005000760570000600000650006556000060000700065050000096850600700000000070555000007050000706006000056677000000805560000508067500050065550668000500057090006757700005970507005000000568700606080500590000066670055855666557560500090060070007000"
"11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"

Returns: ""
"7162617"

Returns: "7161000"
"19999998"

Returns: "9999999"
"9099009"

Returns: ""
"221202110100111111102212201211111200101121021000201110121222212120201100012001112112012110111110011102011111210111101102111120021111101220022101212220020201111111111111201122001210100110112121021111110120111110111110201102211012121100121000111122110112111111120002022210022211110202000200010121012022212112221211122201122112112012102211221111200220100201101112011111001110200110121012111122111000211012201112120221120012210111221211121110121020201120101002001112200112012102210202212222102110021012110120111111021222020201112201122111020011101121110111121121121212111122121110120220122211112102222021211200111212101111121022112111111021112211110211000202100221011111020011011110010211122211022212121111112112111101112000121101111120122102011120012021001110111121012212221110010011020211111111011100210011112102112121211012122110210111012202112002110111111101211000010021022011110122021100021121121201112210121111111212120210210201112011011200122022222111112112112102000101001112112110001000022222001122011102121001112212010012111222112002211121002221111111101122111001122112200110101112212210111012001212111111102111210122100120212110111110221121111110021010100111011101221120022201112110012010112102110121210210111012210110002102111101111021201011101012211112201111101020111101211110110112111212210001111000111120120101111211000111002111120121211120112110122202111111210210121011021100001100201012102110001121111011222012101021011102111202010011220110012011111001112211110110120011120221212001201000021112220120110021101010120011121100211221100120101110020021210020111111122202101200220121101022100021111221010111010211221211110212112212010102111110011011120121021021001122121102200110202120111011000222111111110122201011212010112111111212211111100110012111101221111212112212101021112101110111112011112101111211212021021022111101202111120110211112100222111122102012212112111122210022221102200121001100020102211110121220210121211020012112122020122011012001022120001200111022101022110102101121201022100210100211022012211011111011100122201001121212111111000101210120111211111001102112111111011121101010111110120101111121211122210011022110021111011212022011110022212102121200011110111221012101022102112022111021211110202011112021112122211212011112212111100202212120001101101120202122220112211010011202200102121211212112121221121111111011111121010112222212122111011011122111001101111110110111011112111110112210000112111022120100121110012100211101212120202201111110212120101021121111121101120010200121121121121002010021101121111121120101021212011111102202021212101112001210011121001021220111211000012211011111211110111011011111101100111221110110111221212222211010121111110111111121122121211212112121201002202110010112211022221202021101101100021212202001111212211110212112221211120211110202011112120111220211201220101210122111011110002121201212220011110220212110111120011220110012221112121111101021011111010101121110111111211201100111112111021012101000111111212121100102221001110111110112210220112001012001220102121101201011220101220111002100021220100210110221020221211210020112121012022121011112201020001100121002201122220012221111211212210201221111222001211112011021111202101111220120120212112111101211110211111011101211120101212211212111122101111210011001111112212111111211010212110102221011111111222000110111021202011002201121221100120120121021110110011111201010212211212011112122112010111010122111120001220101121022002101202221111111020012120020011101021001122112001121110021010101120011021022211120000102100212122021110021011011112211100111110210011022110010202111201110120101210222110111121100011201210102001100001120110121012012111111202221011211021112121021111200111000112111101021021111000111100012212111211011011112101111020101111102211112210101110102120111101111201200011012210111012012121011201211010210011211102220021122101110111001010120011111121122011111011212021001221012111201111111212100210111012212211101011002211221100111221101111111122200121112200211222111210010212211100121201110221100222220000100011211211100101000201211211211111222220221002110110211102012012021212111111121012211102121121120001120221011110220120010000112101111111011200211202210111012011221210112121211201211110012001110111111112020110010011122212210121111011100120210021110201221021111101121000211101111211211111121212220112221112010011110110020111110122001202000112011112211120111111211220121111101212111002112120222201211112221022021011121221111212121121121111011121101110020111221102211102020222120111111021011210120011201222212202012201210211002211100200101021102020121011121112122111012210021122021211102210112000111221111210121011002011100111110211101102001022002111122112201210211211221102221112122211212220210121010002000202011112220012220200021111111211011221111000121001121210112201102011111011111021011111120121211011001012100221102111111111111102020022212101220022101111120021111201101111012111110201110011111011210211211100210001102021212222121011102000120121101002111112102212201111111001011202122"

Returns: "221202110100111111102212201211111200101121021000201110121222212120201100012001112112012110111110011102011111210111101102111120021111101220022101212220020201111111111111201122001210100110112121021111110120111110111110201102211012121100121000111122110112111111120002022210022211110202000200010121012022212112221211122201122112112012102211221111200220100201101112011111001110200110121012111122111000211012201112120221120012210111221211121110121020201120101002001112200112012102210202212222102110021012110120111111021222020201112201122111020011101121110111121121121212111122121110120220122211112102222021211200111212101111121022112111111021112211110211000202100221011111020011011110010211122211022212121111112112111101112000121101111120122102011120012021001110111121012212221110010011020211111111011100210011112102112121211012122110210111012202112002110111111101211000010021022011110122021100021121121201112210121111111212120210210201112011011200122022222111112112112102000101001112112110001000022222001122011102121001112212010012111222112002211121002221111111101122111001122112200110101112212210111012001212111111102111210122100120212110111110221121111110021010100111011101221120022201112110012010112102110121210210111012210110002102111101111021201011101012211112201111101020111101211110110112111212210001111000111120120101111211000111002111120121211120112110122202111111210210121011021100001100201012102110001121111011222012101021011102111202010011220110012011111001112211110110120011120221212001201000021112220120110021101010120011121100211221100120101110020021210020111111122202101200220121101022100021111221010111010211221211110212112212010102111110011011120121021021001122121102200110202120111011000222111111110122201011212010112111111212211111100110012111101221111212112212101021112101110111112011112101111211212021021022111101202111120110211112100222111122102012212112111122210022221102200121001100020102211110121220210121211020012112122020122011012001022120001200111022101022110102101121201022100210100211022012211011111011100122201001121212111111000101210120111211111001102112111111011121101010111110120101111121211122210011022110021111011212022011110022212102121200011110111221012101022102112022111021211110202011112021112122211212011112212111100202212120001101101120202122220112211010011202200102121211212112121221121111111011111121010112222212122111011011122111001101111110110111011112111110112210000112111022120100121110012100211101212120202201111110212120101021121111121101120010200121121000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"889999988889888899898898989899898999889898899999989899888888998998988998989899988999888888988998998998998888889898899988988988888988889898998998888888988898989988989988888888999989999998999988998999989988898898999899989889989999989999888988898998999888889898898888999888888988899899889898989888899889989899889989999888988998999998988898888999899989988989899898998989988989999999899898999888888998898998989888999899899888898999999899888899988988888999888998898888988998988998898989999898998888888988889898899999888888998888898888989998889889898889898999888899999999998888988998"

Returns: ""
"9199109"

Returns: ""
"98988987877977898899878997887987777878899987889999798997878789987889798879877987978988789989989987777989988887878799989777999978879897899789877978879879787888978788897979878888988899999878879778797888999777878878888789897777797899799979888898778789799779877879898897788888777979797788777787879887788988878998987877777799888988978887889897799887898879797799797897989798887789988987897879787899899979979878989998978787778987977777789778888788988778878979878999999889979898879999887788887998898877887778899999778978887878977787778999899887789997997997977878899877787798998798978999887888889889898797787799878887988877987879899987997879897977798889978989798977978887979878899998797798778788797797787997797989879789898787897799897998898988799898988878778999879899898988799878897889787999789798987988898988899978988989788789997777788777788999778988777997989799899887887988778899887998779878889878978779978789779779977998879899779978778789897899897797788897889798997798979798987987888797998978999887778778987777779898999779787779799798777898978888988979777888979989787989997987899987898777898797797879779798978898898889778898788979899787998997797799788998789779897978878877798778789977878987897977997797879988979988878978979987789888987999998778898788878798887898788787989787898989979978798887789878887778999887778879888898787779988879789779798899878878989997797977898987979979789989899997778799997899897977897997799777889799798989787799889777987987878979778877887978779978879897798978799888798899978898789798789778778779887779897789898988997797887899887887788799779978988988889877898897899887877978888998977998987778897899877898889899787879999877997897978897778778798787888879878878787897779798798997878799779899898977978887978977978888778779898977777799999899998797898989898898979887987777898877988999788999878887778999878879778978879979898998879878789877778879987778778877778799988999777987997988899997778978987777788878979779988878878998878999797787997989879799899979887979877879898878978888898999889988977777778799779877998999898977779889887877878979978979797987998899899778889789899797987799778978788877877779989978989877797787797797887977977989778777888978897878789878789777799977977777879978779878988798979977878878887999799889789779877887798979888877989778799798999797887778899898777998877987797978978897777788897999787998997978997797778798799989888787998799998799889879989798778788878879878989777878978789988789879888899988999777797779988988779887797998897798798879897877799787798788879898998989978779888797897787878777998999998899898977998889999787997777897878888888898798779779799978898898877899788887978797999789788987789787988977889999878978898798998789787978997877997998887889988799997778977998877878779897878989889788899777977899788898789878977889989889799777798899887877887987799787887988787888879978977788788978777899778989889899879798789789879979988897988978978888977797788888879797897798797778778789789987799998788997997979778999789897887877877779797779998797998997878997999979779997777788988788898799787998988877989898787877799778789878977979798777997798878887799987887877989879898888787888778877777897777989788778987878787979779889778789878789788789879998978977897799798977879798889778977988799778998888877779989999779788799789789989797898888879998897887777878878777777988798899978878788988798879899879887987889899978777899887797879779998797879898898888789779798777889787887879988789777888889897979878999988988798877978887899779799877788897998979989897889797899899787877977878778999789787787887779799778899899898877787798989789897799988987978887789987788977987897777789979899888778788977998788987878877898797798887789999978877897887977797997799997897779899878788989988788798798888898897978889879778989879877897998898779987988979788997888978988798897888879897897897988878897787979797897898987899979998889787989899987979899898789779879789899788778999899778989879789788888997788889987777888989999779797987878999797899898787779887797777877797799777979988979778898878878897987878999888779999999798997879879889897877787877888897898988878789877898987977877998979887978778978877998778988977788799787799989979897999898779978797978799977978887899888777879878778987777898777787888879779988778779998797889788787978999979889797977777978999999788799999789878978878898789879998799799887788999789987987797877779988887779977979977888997787789877877788989878898877888879797998787987797778799798898977799887998877877778799978989798889788997799978999879999887888878999799787777897999797889879978897997999899889999779978877997898797977999777987777978977888989988979889997779789798999977978789877878989999879877887888779987989977977877788987777997987989989787797897987979778778879877888787788998798998777877887889979787778977977997978899977787997978788877789878778978898797978788789899977899989888889777899987889778889799898887779979799887888789878877888777997778778799879898789979877777798999879897979878999778898999997897778797998897787778977777777997888887787888799979789977798988889788998978897889987"

Returns: ""
"8777998"

Returns: ""
"127899258582370137234956030371637891499754249452222778798462820611602139548215312152573232513280469323337011126315684888494964187731566926033235640344775749749878829455595542085463816312999179359856457836426374479639251502206796736677195135511788971249718001416979622655218976358397588749375483340156987248415159855446855070398923981476737843103036701065558614680873111776269549022640470156439377854738247371704897410463769494973032759677995300911897481838324452333568117395177796619395248149109222542180149080096169246559990451596145198067328744973109129651034201449000943979723525533134913621275928952914874346203464105204529381336797737076500099498460110845260317710017298870558322458145171333201149866537854872194822970347157825900622500406817947857228451607413149015527119607981302002909604274634409976933881070649694222561475720226575013351039661572185532586179036727866463693917437493282652400326395855693555016171684958097102477324158216405932891228188829548252196876263153746586689834082200279112806794517271366548109807363773486566873743358269475258590481748214355181397785911022701161265645326754454671791547810666444282847962323787328490862727435206658116391823552143787573388380470449396193051756323726151699801335007428430533770716887673071625428845763337101141383369025070998883506439248256314355473840848404937589669327064864842619261678320457075194707896268909180305541037640153222876292644715683179107956768213345356976012548868879124024562259288296268554242820137352202277009300903930082000808788181316577219013196818053769779530486663666591996899206543863699766292358842158697818240196628012674953827756416807106172905584015935659067953345151689103720027102806299200589107933336900306202081434064781945349681693823677134701936292968023881859396380994655502190073967941873169171581246654868361468635468814260601059960215952657509437139828457173319346159269912949140442516037423145562802699118403367620666846883004793933170464821898334590686556697709613885076075131802988043627121735111314713245988734203037099711290726826523111827111955315219400870849956951162653067983288374401645598394237705599819815236463791570231805536711160178559886701025677118288645850091377367593881439868809860265591791853608180354975601161550470394953831516767003359299424141088332662346487209890091808473728117700323427111451465895841788504203792922277336129226472184482746308829051351670744739241505233398411688658056941099904157740082820229332258509836408509721306290523356590065866512539130641928729391791825603093531565757098575232608260421701480373800496222293301729093776239900104075075679710389442260504293753607724226091790274738438216473193063278312028740250478714859856416511162532299672182637490819099891169553426722289113142489306329976672512834950396504626110547945408180545818818557295900786893418949466378310104765579381067663009668906478205120673560812217508846364251791799550774338389554719348379327977124736104965994916809402251256911072821033462871708310800073931143688955331731411143802172643988929724047068147941590679764667708544380911757406043938850037774776611586340381099729736465023473962414513095030897385164302326285372894273490466715061206885119616132877552586516485844675207627087127923886838099120555640007369395917941976930353019654166741739717694355017845043518119270299874332881197510190359830063101641088616154235987084762861939550828161169772464682844957620983560203192868686114885330267689745744570189870019556746668403497706745070870230992167571328078790810018092940910281078220224284102824245477369188206216641943087897785520957965463241196764970197248552744619367822235104673004551308090897159979748257065512377716192514846847072297688573951374903936456342256275294460428890007151987329414109083335853893451617027777871716742512393469954309799725052842255825029259395406407389437468844124542809352186660252472825808493368831226984729234467700785410807646336862354556216210712100958779418255242184718498585257507186235736767558536846369801183466416380549760831187300218043798669555835125267969116374592789183208833959371185153366530070085848717161945639645958372309435628229473381938746455882773087169513648227505704014341047662201756426433238704617017733977901442646349600830921307980602171451095231469624393274883881870400521510853876074316832750216954883555894220124417154085431296496890272001672305165800105589490100458073679773318392550250037529274346850934892967212630953122662521807844909995410144004693290028043792286980145258526398995674187160097105098224522191095074358402658778149382076543335441293719568921899358977705733036850486845410379949716385173745877403365206503722095497256722136807741675567009664129144763767517933088407045874365796251375268966204327557394688580376456991156711707971410081695216888821553050168752769870220505284698437362363875564895398190030370836548123460654402797794794866753303664124161866514868245948488848760273110964431296518131434227615221252283494219522601836379788811325484345789518884616312955943284096328586289882"

Returns: "67898658582369577234955965285877886498947248746216978797786769861596639479664656646866672462695469266736955566258684888487887678931566868532675635277688749749798769377895476577757758256998679359848457836365767798838645796698796728876694567756788885678859995758899616855168968757797588678768476679656986647757659785376854565389923976476736977096536695985557807675786561768688778516635465156379377854737677366697897355387768794886966689677988299956888781778267776273567567394677788869388247578558666776679579079595668678559989781588644697987268737972599629645973695778995873899716768526567856865688868876857787678196763597697468776276797676575799598789455059975189666859966698869788266387577585732696149858769777866694762885276586925850566799798767879778668376598756649015468569557975651952859597267567759896933795985579687662481468669668867957275979655786677826795669968667858787687867376786696876395266388854887554965666684887596596468664158166398872885667688768839651688876256576945886689773576699669556755987459266366479559798687767485866786872687689475258589776677663677676397785905516895656184877668953783865990777759866443682777962266978668485786919367698887615785967476577786786788375389778788686976755667725576699795674998768365467685666879672566567768838757277095575782768967565998882798778647655663755467835847754937588869266564864841868685869665456568187699895688858599654835968879576666988686877864897179107948688163278356975956777988878563967856689197698667777676969577276696696508695853929576995758787596266576668956696809977689698769798887665886996898698473787698885692358841658688968179695867956887877767678766798555672854883965868649987953274651688553669526596798698695499557866676899698196576434057776945349676693767668574696928692967967876859396375993848451689573887876872668586575676647789756468567767913685596058989658946856799768639827779166669275649669856949075441765976722575482796699067797287565586776796997787873089784765997734585678548697658857877576074571796897977566615927555707856645988673652976599706285668765762556766555984657669395785849956945586646567976687774396645598387637705599768957675787785785165998476656089677789886695965676559687875779590777366797881439868759859665586786783557675354974895586545469794947765766686996689298717075588266856338786658989586758473667617699666718555751465895841787797153786916677275568666466677796676258769981276670677678635798167398355887849978935599897657739582769629266688459776357759666306285523286589565788756478569871869669695095007706506065777000500007000050000055005705006005007556000605000500000560000550087080800855000066070750606076000057007095005007068660550006506506000650060005070700000000000000755580765600000506000005050500905500770060856000556070700007660008005756060000600050057550700000050505007050050000600005000000000069700000600507007700685500006050000007700507055006070856058750067606575805000000000660000000050000600660000560067550000000058050005575607955506055506706085050050000506005506000000665860655570850506066009060006500000570065705000080080050000600955008608006060070068007008055008060605000060008007500706005700056000065000690507005660087600000586690700850075507900050057500900776000050687070007550058500500056008000500505070800050000000050065000000670050006580065000050000000050070000050550080600006666005598050500670060500505005500000507000008090076005000705000505580005677006067078755006700506005880000500000000608800067007080500000050700067778606708008067080000565005500005058500005050050500005050600508550557006505856567700679509007550765006500008807755000000076005008080000000068705866750678855567506786050705608505008500080070070500055680857505700000000506000800000005600050060000605600600606670700000050575000600656550006060070006675050500080005058066056006680006650000057500065600057060570607608050000668700066557065850600507770576080857050006680865000007000600000805007700850807600875676708050550850550000000050577605507050700000000008507607868000700060067680005586000050085070805065590600550506000000700867560000080500680706000506550006070005000006680060500507000050505000060800070006050067758560706005060067670006086090509750770558750006057065070775505070008006560007058058000008005666070070005005005650005005585000000565680057006587086005080600755005000907507058006000550077086770000050500658576507065007700000605005805607007805050090700500700506000006050606070570500760086668075067006078555765076560075760008007050007650506050000590500070006008000500570007600000086500500500007500556755505507500070005770000500005500006067665006000780055900070000007066068000700067055000070050007500000000006000050050060507708570005568050070800008050000560066800000050000090050500007007000575600600000506660070607000000600670005000850008085650085807558000055776500500870000080550750600808660606000000080000000500065085060770556000777006008000000078076050006500575000000880567070000000075006555000665000058505006560750555605586000550005705067600000850060700070800050006758056000000006500000000600006"
"100000101111110111110111011110010101000110100001110000111100010100001100010100110011001110010111001001110101011100100100110010010100000111111011101001001101001100000011000111111101011101011010110100001001011010101001100111011001110111110111110000011001000010111111011000101110010111010010100011100010101100000111010010001101001001110111100111010110110000000000111111111011001010111001000001111001100011111111101111101101111000111011001000001001100011110010111011101101001001011100011011101111000100111110101110111101011111010011001010100010011101100100000001010110101100110010000001001010111010110010100000110100000000101000000001101011010001001010000011101000100100101011011001001110011100101010001010000111101101001110111101011010111001001111010011110010010101011111100010010100110111100110001110010100000000111101111010100000011010100100010101110010110010100001011111110100111101011100000100001000000001000101101100110001111001100001100011100011000001101100011010000100100101010110001111011001101010101110100101011101011101111101011101010100010100010010100101111111011001011110000100000101110011011010100111011000000000110000100001101000110100001001110110011010110011001110100101111100000101001111110000110110010101110001101010110011100011011101100100011101100110011010001001000010010001011111111101101111111001100000111001111110100001100011010100011001111000100110100110100010111011011110010001110111100100011011010111111000011100000101000011100101110111010001111011011100000110111001000001010010010011111101110111011010001001010011001001101010010100111100110001111100100011000001111010011000100101101110010110101010000111101011010000010011101111101011110111010010101111011110001010010101010000011101010001101111001011001001000111000000100000111000010100111000001111111010101010101111011101010101001001010010101100011101101100110110110110001111110011101011011010101011001011100001100101010010101001001101011010100101111011100000100110010001110000000001011001100111001011100011110111011100011111110100101010000000100011011000101001101101110010111000101101100011010111000100110100101110101000011111101011110110110001101101101001101010110101110111011001000111000010001100011101011010111111101111100001110001111110110101101010011110100000101110001010001001001100111011101100110000101111110110110111011011000101000101111011011000111010000100110010000101110110011100100110000000111011011010111011011111111010000010010000111011110100101000100101011011100100000100100111100000110111100101101110001011100100100101001110001110101110100110010001010111011011100101110001001000001110100101011000010110101111110110100000110100101101100100100001011100001000010100110110001010111101100010001011110111101111110001000011110110001110000001101110000010101101100101010001111101110100001101011101010101011111101100010001010111101101110011110100100101010110101011100111111111100101111101010111001011101111110001100100101100110101011101101111010011110000100111010110010000011001011110001111000000110000101110101010001101000011001010010011001110010010100101000101010000111011111010111110101101001111110110011111111110101011101001011000111111011000010111010000011000010011010011100111000010101101100111000110110010011001011110001101111101110011101000101001100010100011100001000100100010110100100111111101010100100001100001101110010011110000111011111100000101100000011101101000101110110001001111010000111111011001101011001011010010101011111001111001010001101101100011110100100010100001101000010100101001100000011010111101011010011000101001011000110100100000101011100110101111001011000110100111111001110011011100110001010010000001100001000100101110100010111001101111101111110100001001100111101001001110101100010001101010111010110101110110010001111010000010010111100110001100001001011001001100110100111100101110110001011111110101100010111100010101111000001100000101001010101111101001111010001010001110100100101101000010000111110100111111111001111010001011001011011001001110000100111011011001111111000010100101100000000001100111011101100111101010110110001111011100011000100100111101000110010001111111101101001011111010011011101100000011110101011111110100110101110010110100110111000111010110011110100110101010100010110100110111111011000110010111001110100011001001110101100101011101001110000001011001110010011101010011001001000001001110100001001011010101111010011000011110101011101100110001111000111110110110111101111100100100100011010010101001100010001100001101011011000010111101010111101110000111100010111011010111010111000101000111001110011000100001011000100100101101001000110010110011010100000101101101101111100111010100100101010010101000001101100101010011101000100000111001111110100010010100101110010001010101100110111011110111111011010001110010111110111100010111110100111000000001000101011001001001111111101010101110011100111000010111001000110100000110100011011111100011011100100100110011000100101101100100110011111011001110000011110010010000101000111010011010011100011101111001011001111111111100101111100010101100001001"

Returns: ""
"222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"

Returns: "222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"99998999899988898989998989989988988898888989998989898899899899898989899998899898899999889989999999899998988999888888899999889898998988988888899998888898898998999888889988899998899889898899899898898899998899899899989898988888889988988889989999988889999988989888989898899898888999898989899999888898999999989888889899889898998889999888999898998998889988999889899988888988998988989998899888998999899989899989999899999889899889898999898898988998988898999898889898999999988999898999998989988889888988899889899889898989988988998988898889989999899998988999989998989988899998889898988899998989888988989988989898898988888889989898989889888999988888999899988988988989998898889999998888888898899989989999998888898989898989989898898889988989999999898989899888998989998899999889898888889898989998999988899989888888899898898988888988899888988988988988998988989999999998998998899898899988898989899888888899998888889898999889899889888998898889889899898898989998989898889898899899998888988988999998889988899988899899888998988888989888899999988989899989888898889888898898888998998899889989989989899899988899898989898988888898998899899989888889899999889998999998998999999989998998888998989898899888998999989989899999888989988998989999988989989998889898998888898998988988898889998999888898998988889898898899898988889989988998899888898888889888898898898998998899988889899998998989999899899888888889999999899989988998898899898889989899999999899889888889899899989898989989898888899998899888889889898988989999988889998988899989889989988988988998888888998898899889998988899988999989998898989889889889889898988989998999888989998989899988889898988888889998998998898889888988889889998888889889988888888889999998889988898998888889989888898899899989999999899989898988999989899988898999989989998989999889989889899989989888898889898889899898888888989999889998989888899999998989989889889989989899898989999888999989888899999999888898998889999898899899899989999998898888888998899898899898988889999988998898989998998889889899898999989898999889888888899898998888888889989999889898899889998988898889898889988888888988998889889888989899998899998998889899989888999988899889988988899899898888998898999899888898888899899898888999988999998898888988988899889898998989898898889888988988989989989889898899889988999998899898988898888989998999999899998989899889898988888888899999988899988989888989989999989989999889899898999899989898999899988898989999889999899988898999889899998998889889988988889988989989899899988888998889988989999989998988999888988888888889999988888989888899889899889898889898988999989899898988998888898998888989899888899989999889889989989888988898899888899989899999898989898898888999998889998899988989899889888898899989999889898888889889898999888988988989999898989998998999899999988899899889889998899899999899999899999889888988898989889889988889898998898888888989999899999899888898998989899998988999899998898898889998988999888888988899888899889889888988999898899898898888999999889898989898889889898899988889998988888988999999899898898989998999989888998889989988888999888999899998899888999888998889889888888888899999999899899889988899988899999999899999989898888988999888898899998988998888998888899999988899989898999898989998898888999999989998899899889988888898889998989988889898888899898889888988989898988988989898889888988888998889898988989888989888888989988999999999898898988888988899889899998998889898999899899898899889989888999998889988998998998889888888899989888898988888989988889888988998889888989989899889999998898999999888998999899988999898889888998898988888899989999999998988988888999888988889999998998988899998989889888888889898889889899989998888888889899889888998988898888898998888999988889988988988998899999888899899888989888999998999898898999988998888888898999989989998999898988898988988889899899998988998988988988998988989888999899989998888989898888888998898999988898899888989988999889898999888898898988989889899899889998889889899988998899998889888989899899898889998889889999988899988888889898898889988988998989988899899889899999989998899999988888989999999999888989899988998899899999899999989998889988899889899889889999888998899898999888988899889899989999999889889899999989888888898888888899989899988988989898889898999889888989899898989999998988899898888888889898998988989898998998989998998988999899998999989989889899898988889889999889898888998989899889998988999989898999889888888999889998899998898989989889999888899988899899899999999999888898898989989998898888988889998899989898998999998889999998989999988999989999989998988889999889989898898889889898988989988988899898998998889998888988899989999998999889988898998988899998889989999998888999988888998899999898988998988899899888898989988998899888998999999889989998999998999989999889988989899888898888888988988998889888888988999888999898999989899988898899989988888899988899988898989999988888988889899998989988898999888999898999989889999988988999898888988888998898998989999989889999988899999989988888889898989988899888998999988998989899989999988889998898889888999998"

Returns: ""
"111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"

Returns: ""
"222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"

Returns: "222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"292992900902009022299990922029990209200290029020099020902200900009929002902992202090209009909200299999990000209002920092202022299229920092990209290992009200092029222229009099009290902900299090229200902222999202090922029222299002290922909029029900902002922209292090992229220299000202000092092902090222922909090000292099009209922292029022220222920099920200022099020020009029200029920290902022209099909929902022929222002929022022200090002200902299099299002920229929922299909200000022020992229209222209220999999290290992029990099002099929009200292299929000020209202000002222020099020990900029090090900999920200999292222092099220000090090220202299090002092002900229292002920929099900909090900909922209292929099000929020200292009020202009092229929029909092909999202009992020009009920090992990990909020020009290099290290200029900920092202202292990922922909920999099000222909990090090099022222992090920220200292222009220009922922220292992299290209920299000990290200202090090009909292990202000022999090922902922002229009020929022920099200209220020290200000020092092900000002090292000090922222922992929292999222290000990202922002200902999900902299992029002020900929090992029929009220029902092920990999999029922909999222900099299292099090900099299292990029909200299929900922222022299092920992290922009209292090000992902020222002020009902992099290929902929920292000999022990222299000099929900022002290029299209900292929202900009020099999299202922292290099999920990009202999929900902929920299222209209099902020092209000099922902020920290999999020090000029920229022920002922099209200900099090292090022202999290220920090902220200999902990299992200992999209092202202999022220292229222990902022090292209902000009022299292000220299902009922920022202999929999000290099200090000009020999090292022090929900990092220929209200992992009900909992200029929920202020229000029222292209202900099020900002909000029002002220229022290090000200220200909202922999022922920992029222009902909999222020929000009900022990000922220990220990929220092902929000292200929229990000229292020029029020909999020029200220929202900929909202222220999099009902200929009999990920000902200999220090299990990922092222220200929022990299900909292222229292222099999209009020220999992209099222229999922002902002092900902990900990200209900099200900002222220020200990990992209922022922009020290002020920902229022092229009092990002092902999029922020202222902220029922900999090020929229902220229290209092229009009092929299029920990209099200290220022902220000022290229920929902092290909200200290900900922992200000000020929922900002222090229022009992902922292900292090029290009002999202922090900009900202929000229020202900009092099022090929099009920222299092292200922909229029929900920990900000229200002900900099909992090220222290290920299220090229290009022209902022099020920909222022990909299992292922090090290222902202992909929090990222902292090022029929022999900922020092290902929922902900092929900290992029292220200992292990009900209009202090090200009000909009299092029990099000922002002099099220209099209200200900922299902900909920202009909090000909090229990009920092900992092092220900200999299200002202299992992902209090909992022292020992999009020000209000099002009902009029020099200902292000200900909992900909090200009900902929292020022992220922229200292209200202200292292009299209022020292290092900202290900900099229290299090229290229229222009000029902020900909022222022092002092090029229922920092002290202092200990992909090999000020020000900222999992292929092292920029009920299000229999090099990020929929992902209990299029209092220200299909222929929929920029299009929900090020020292922902922920029090920900992029009229290902999902909900099902000220009209292922020292220229092290909229292202900090990209022900920900000002002009220229222929099090202992020009020220900002222992929009992000299092092909992099029009299029222929000929220090202099009292909902290090909029992002920099220209299009020222202200990090022290999099292222992920009922902009999929222900022992022022922999920920009209090220290220200299290992929000220222202900099902902020222900202992920929909029099229299229200092222290022209929002099992929992000292999222909099202929209090992299000220022090220290029299200902290029900222909202992229020202220090200220922029902999220290202920929222902222009209022299092292229092209090902920992229909020292299092022209222220992290990909990020092292299909290920202922099020290220299202200922020229909902900092002229292922099909000290990999920000020220099209929029092200099920920092002020909202922002020909092290000092000029909000022099202299999922009992220009092029029900999922000099920290092000220000902922200222999999920292090200922990929900992029220992990202909009090092002290029002929020909092990290022992229090202000292990209092020229090920092002229009990290920090290029922002092029009909020902290992022922009222992902922292200092992229099229999092292299202020099222902009909222099009020220900220292009092929200229929090929902020220029209092999029909"

Returns: ""
"18879787"

Returns: "9989888"
"90900990009009000099990000909000000999000900999090090909900000000090090990990999990099009099909009999990900909999999009900909090999090990000990099090009909900990990009900900990990000009009909990000099999000999990909909090099990009000909990909909990009009000900909009990909990909999909099909000090090909909909990990099990909000990909999999900999990090909090999909999990900099909099099999090009090099090999000099099099909909909090099000999099990909000009990909990900999990000909000900009990909000909000099999090090090099000990099909900009000900000990000900900009009000900990000099999000090099090090009090900900099009009009099000999999000900099099000090909900990000999009099009099000909099000009990009099999009990999009999900990999900990900909090909009000990900990900909000000099009009000090000990009099090099099090099990009090090990099099909990090099009000099900009990099900009009900000090909990909099990009090090999999009999909999990090909090999990990900990999090909999000009009909900900999909000999000090099999099909009099900090990909099090090009990999909099990000009000000009000099000900900000999900900090909900909000909999909990900900900900099000000000009909999000909090990009099099909900900090099090099909000990900999000099000990990999909009009090900990099009909909090090000999099909090000990009990090000009990099900900909090090090900000999900090900999009009009090000909000909000009009090090000009900999099000999909999900099999090099909990990009090909000909900090990909999009090000909099090009900909090990099000009900990990009900990990999900000000009990909999099990099990999990990009000000099090090900099900999990900090999009999090999009090999009090909090090090099090099099900009909909009009909099099900909999900000999999099099099999090999990090900009000009909000099090909090009099000000090909000990099909900909990099000900000909009000000090000990000990099909900909099999090090909099009099090909090990009909990909000090990090000099990099909009099090999000990990000990000009090009090090909000999990000090990090900999999090990900099900090099099000900900990090009009900000000900099000090009999000999090009909000099999900009999999009090009999909090009990090009090900099000990909090090000000909990999900009009990900999009009900099990090090999999999900000990900999909000999099000909900099000090909090000999099999090009000990999099900000009900000999900099909909099990099999000999990900099900000999009900900900000900990099999900090900999900009090999099909990009099099999909909000999999009009099090000099999999900909000000099099999090090999990990099090009900990000099090900900090990999900909009909090909990090999900099990090090909099099000009000909000090900099000900900090090999900999909909990099900999090909990909900099999900900900990009099090099099900909009009090090000990900900090090099909000999000009999090900099090009099000990000090990990009099999909909999900009090990000999909990000900099990090099900909099000909909909900099900000090909909090090000000000009000900090999090990090909900990000099099099009900090990000090999909090999000090009909909099990900090999999009099009909090909090099099090090000909900909990009909099900009900990999990099909900099900990900099099999090999999909900909990909009090090900900099099900909090999999990099090000000900009900990009099000000990009099909000090099000000909909000090990909000099990090099999099090900999000999999900000099000900009999909099909900990909999999099999099909909000009999000099990099099009909000009099009990099090099999090000099009009099099099990099009000990999900099990099090909999099990000909900999999900909090999909099090090909990999009990900009000990000090009909090099990009900009009009090900009990099900909999990009090999900909099999999000990099000909909990099999009090900990090009000900999999009909009999000000000000909099990009990009099999009099090990099900090900990090099999990999000900090099900990900909909909099909000999009099009999900999000009909099900909900009000090009999990090909000009999990090900990090909009909000000900999009000900009099009099009000009900099000900999090900099900900090990909009999099009999909900009999990900000099000999900999090909909990900900909000909009999000909909909900000000999990099909909900990009099909000999990909099090090000900000990999099009900099099099099999909000009009000909900090099909090009909099909099909009999000900999999009000999999000990909090909009009090909990000000099000090009999099900999099090099009090009099090900900099990000909099909090999999000000000900000909999909900909900099000900909990099990990099000900999909999009909099099009000900000990090009900000000909099099900900009900900990009009000999000990000090009000090099909009909900990900999099090090900009000990090090909999990909900900090990090990090999009909099999099000900000099999099999909000900099900090900900099900900990099990909009990900000999099990900090099009990909090090990909999909909099009099009999090990990099099009009099900900999000990990909009090009099099099909090000990090000909900099099009909990000000090999990009900900000"

Returns: ""
"199999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999998"

Returns: "99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
"1798987789997887997788987779888977788898778788787897987888998978888887887899979879899898798787778887889878887878899888987979887787979888778879999889998889779788988877889887889888878989888887989787897897788888788778988987787798888888789797877878788798888989888978878879887898989887878797789787998889977978798898789787887779889787989877999879879887887989788787789988888888789898979988898989788998887788797898888779989888877887999787887979998988879798887888977889888898899987879888979987877778878877889899787799789798989887888998889897898898878897987888988888898777899888989789997878787789779887899789788798988787899778888787878987877798997787987788897787888898878889898789878998988899879788898877899999988887878888878887888798998899888987987888988988788898777778988777898888989879888889878888988998788889878888898779887888797989988877789899899987897887989889887888788898899888989978898888797779787879898879998879998898887977887879788889778877888998878778897887887888988889787888877999888888878888889779889888989988989887887898997888777789877787797998977797788887888777998999988788977789997989879998977899789798897989997978877888988989889897889899887789978887898988989887799778997878879989899888998898987898989888978988979887878887799898878798888887889987799898778888987879777788987988887998899988988889878988989988889788899898988889778898877899978878798897898788988999889777877888788897888787998788887898898879889797889898878799878878888788799788887988888887888898778997889799877787977887779997889788778798988897777888989888989788788989998888898977878888898978887888888888888888977978897977897877977977898898888977989787978788989998987879897887888787877987877978788998977877878898889888897799889897888998888898897778899888978778989788777898889799889987878888888878897798898799988978888888788887889979899987888878888989888898889987887887777989787898787988788888789898888889888799888987887888789887897877979998977889878988888977797888879879998887879897978889978778888878998888777887879887988887988889988889898898788798879889897778978887889788877988788988889889788778999988778887889888998779888789977788978788989889897788888789788888878999987888877889978887997888799787877777799887878797988788889988778987998889888887989887898988887877799887888879987877888878897988889889889988897888788888988777888987797787888888788987897889787988789888998798789888988989898778787987789988877787887778987888779979898778887988989789889899989889879977888888888888888787989997999989787878978878988877789798879888788999988778877889999887888978897987778889878879878787989999799989787888888888888888779978988989998988987989889788877898979977888789877788787778889987789787877898989889888987897899888987889787988798789887888888787797789888777889888887888798889988988988889798878888778789978888788997778788889898788989788888988899789877889988887889797878788997777778787997888799788879988778888789999878888887987888887798988989887879887779987888977899888988788877889999877887988988889887889778887988788879877798988978897887898898988889988889788889788978788777888899878888877879988879798978788899978978888797779888889878988779899979778798788987888788789888997888988888898987888887889787898787989777788788789988898888989888878888789998979988788887888888879889997898897798878888888878789988997988898777887989877879888998877798898888899888798988997798888988898878778779899887879778789778787888788798978789899989887879787989779888898898779779778798779798879779888888888888888788879898888878779898888899989887887989888989888777798889897877887988799977788779787778997988799877898888788888889788887997887888878878997878898988797988978898898788887899787888798887888778777988999889887898798897878879998778898877988889898998887988889989889878988889889998899788889789887777978789888877898997789988788888897878898997788878788979889879888989898789898899888998989978878799877997788989889898788879987788998988798988989889888778879799989798897987998779899978989799987779887889999899777888788887797779899797787778987777888799898788788989889989888988977988888878888888999778888787988889888788788798877878899888778877988887978788779788898899978899978898978787977797888898879989888998898887888788988989788798789998998987778889989797888788977898888878988887899889888878988888978989888898777889877777898887889889888789789888998899897888788878888878788889999998778898887978998889899878987898988878898888787798887789787799897778789878787888877998787889897887987998788977987787878799987989888998777898888889888789798878898898798988899888788989897987997787998988778878877778789979888978789998898888988779888788897978889899979788787999788778888989977888898797887788899887989898889979898987888888889987787887989788788978978999778989787988977788787987898897879779988899787987797878788989898788978878879888989888897887878778797987888888897787789889877887888887798798787989788888989878888988788988778889887977988899988999978877888979787788979789888998878788878988788877787897898998978979998788788888879899888789798787887877898887779888977789887799788799987789896"

Returns: "899998899998998998899998889999988899999889899898998998999999989999998998999989989999999899898889998999989998989999999998989998898989999889989999999999999889899999988999998999999989999999998999898998998899999899889999998898899999999899898988989899899999999999989989989998999999998989898899898999999988989899999899898998889999898999988999989989998998999899898899999999999899999989999999999899999998899898999999889999999988998999898998989999999989899998999988999999999999998989999989998988889989988999999898899899899999998999999999998999999989998998999999999999888999999999899998989898899889998999899899899999898999889999898989998988899998898998899998898999999989999999899989999999999989899999988999999999998989999989998999899999999999998998999999999899999888889999888999999999989999999989999999999899999989999999889998999898999999988899999999998998998999999998999899999999999999989999999898889898989999989999989999999998988998989899999889988999999989889998998998999999999898999988999999999989999999889999999999999999998998999998999888899988898898999988898899998999888999999999899988899998999989999988999899899998999998989988999999999999998999999998899989998999999999998899889998989989999999999999999998999999999989999989998989998899999989899999998999998899999889999998989888899998999998999999999999999989999999999999899999999999999889999988999989989899998999899999999999888988999899998999898999899998999999989999898999999989899989989999899899899998999999998999999889998999899988898988998889998999899889899999998888999999999999899899999999999999988989999999989998999999999999999988989998988998988988988999999999988999898989899999999998989998998999898988998988989899999988988989999999999998899999998999999999999998889999999989889999899888999999899999998989999999989998899999899999989999999899998999989999998999989999999999999999998998998888999898999898999899999899999999999999899999998998999899998998988989999988999989999999988898999989989999998989998989999989889999989999999888998989998999998999999999999999999899899989999998889989998999899988999899999999999899889999999889998999999999889999899988899989899999999998899999899899999989999998999988999989998998999899898988888899998989898999899999999889998999999999998999998999999998988899998999989998988999989998999999999999999998999899999999888999998898898999999899998998999898999899999999899899999999999999889898998899999988898998889998999889989999889998999999899999999999999989988999999999999999898999998999999898989989989999988899899989999899999999888988889999888888988898988888889888889888888989999899989888888888888888888889988988989998988988989889888888898989988888889888888888888889988889888888898989889888988898899888988889888988898889888888888888898889888888889888888888898889988988988889898888888888889988888888998888888889898888989888888988899889888889988888889898888888998888888888998888899888889988888888889999888888888988888888898988989888889888889988888988899888988888888889999888888988988889888889888888988888889888898988988898888898898988889988889888889888988888888888899888888888889988889898988888899988988888898889888889888988889899989888898888988888888889888998888988888898988888888889888898888989888888888889988898888989888888888889998989988888888888888889889998898898898888888888888889988998988898888888989888889888998888898898888899888898988998898888988898888888889899888889888889888888888888898988889899989888889888989889888898898889889888898889898889889888888888888888888889898888888889898888899989888888989888989888888898889898888888988899988888889888888998988899888898888888888889888888998888888888888998888898988898988988898898888888899888888898888888888888988999889888898898898888889998888898888988889898998888988889989889888988889889998899888889889888888988889888888898998889988888888898888898998888888888989889889888989898889898899888998989988888899888998888989889898888889988888998988898988989889888888889899989898898988998889899988989899988889888889999899888888888888898889899898888888988888888899898888888989889989888988988988888888888888999888888888988889888888888898888888899888888888988888988888889888898899988899988898988888988898888898889989888998898888888888988989888898889998998988888889989898888888988898888888988888899889888888988888988989888898888889888888898888889889888889889888998899898888888888888888888889999998888898888988998889899888988898988888898888888898888889888899898888889888888888888998888889898888988998888988988888888899988989888998888898888889888889898888898898898988899888888989898988998888998988888888888888889989888988889998898888988889888888898988889899989888888999888888888989988888898898888888899888989898889989898988888888889988888888989888888988988999888989888988988888888988898898889889988899888988898888888989898888988888889888989888898888888888898988888888898888889889888888888888898898888989888888989888888988888988888889888988988899988999988888888989888888989889888998888888888988888888888898898998988989998888888888889899888889898888888888898888889888988889888899888899988889898"
"19000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019"

Returns: ""
"10110000101010001100110101111011011111011000101011000111010111110100101100001011001110010010011001101001000101001001000010111111101110010101100000000000011011010011011011110111100011001111110001110110001100100010100111110000001111111011110111010010000100100011001010010100111001110101000001010110111111010111011111101000111110101001001011011100011111110010100111101010101001011100011000000101010101111101111110001011010100111100111010100110110001110110010111000011010001001101001101110010110100001010111110011011011011001111001111101011011010110100111010000110100000000100000100000101110111000100001100001001000010100011010111000111011101000011000101010111010101010101000100100010011100110110111111101011110010001010111100001111010000001010111101001100101110111000100001011101111100011001000101110010110010110011000000001100110110111100100000110111110101110101101010001100100111010111110001010101000110001100100001001100010100110101001100000001110111000110101011000011011111001010101001100001001110001100010000100011101000111111001010000011000001100101011110011010011000001101111010100010001000111010111001011111100110000101010000111010001011111000110000000101011011101100010000100010101100010101100001100001001000111010011110111011001000100100000111000001011001101010111111101011101011001011011110111010000110001110011100011101001100011010001110110111101010001001100000111010111100010100110000001010010000111111010100011000011111111000100011011100001111010111010111010111000100110001100010001100110001001111011000101111001110011011100001101000011111110110100111110011011110111100110111111110110010100101100001110111110011001101001101101011011100101010001011100100111110011110001010011000101010010000101110010100000111100001100010001101111011000011011101111010111001000101111001101011111010110000001110111111111110101011100001001010010111111000010001100111011011000100101100010111111101111111110001100010000100111001010011000110001100000100011010110001100101110011111101011011011011101101100101100110000001010011110101111001011000010001000011001010110101001000011011110110101110010110101001111010000000101100011100001000000001110011001110100110111011111001100110001000100110101011100011000110100011100101101101101001101100101111001110100111111101101000000010011111101110010000011010111010001110111111011110101101100100001010011101010100101011111001111001011110110100111001110010111010001111101011001000011110101000000111100101111100010000101000101111100101000110010000101100110101101101101100011111110011010101111101110110100101000110110101010010110000100100010000001001100000011101111100111100111110110010000100000010101001111101100110111101111011000001101001000101000001100010110011011001100000101010011001100011101010010100101001100000010101101110000111001000010000101110001111101001110100010001001001101110011110111000001110101011011000111100110000100100001010111000010011111011010011010110110101011111110100100100000110011101101110101001100110100110001101100001111101111110111101000111011010111110100010011101100011110111100101010010011011010010100100001011111101001110010010110011110011001001101010110011110110011000011110001111111000111001000001110001011101100011101010001000111001111000101110110101010101010000000000000111101000010011110010000001101111010101010010101110110010110010011011100001100000111011000001111001100100100101010001111100111011001110101111001010111111011010111011101100111001110111100000010001011111100111000101010000011011000100001000001111000100001101010011111111001001001110011011100110100101001100111001100000100001000110101110100111111110010010110110001000110001011011011110010100011111100001110001110111001011111011000010111111101010001111011110111111000010100111010010011111001110001110110000111011010000111110000111100011101111010100111111011010110110100001101010000000110101000101110010110101100011101110111001010000111000001111110001110010001000100100100010000010100110101110111010001011010000010001100010001010000000100001111111000111000000100010011001101000101110011100100100001000101110011100111101101010010000011010111001000010001111111111000111110001101110001111001001001100100111011100011100011100101011001100100100101111101100001101011111101010100101001111111101110000100000000101100101001110000001010001110111110110011111101111111000011010111001110000111011110001100001111111001010000111111001110101000111101110011000001011101001000100101010110010011011001011111111100101111001010101001010000111101000010011100101110000111100000001110011110111000000100000011100011001110101011101110111100100111011001000001000000110100000100011001100111001110111110010010110100001100001100010011001011011000011011000101101000011010101011100110000100001010000000100110010010101101001101100001001010101100100110100111100100011110011001101001011111001010101110000001000000110111101101011111001110101010011110110010010101100010111001101100111110000111001010100000110010000010110100100010100001010000000000001001111000000011011010011101110101010100011111000101011001101101"

Returns: ""
"110119191191111110011090990109090019999901099009900091900099909000199119101991110090101999011199191010990911000101011111110019111010199009091909019109199999011909991919091900009909901900119991009009911999011999019900909010011019010991011100011019991191111999090990901901901990090991010091991000909901101909111919090119001001009909019091019011001111091910199901901111919010919011011101011100999909090000019911111011110099001110099099119901199900910910000009101099191190191100000900990911009111910009099011990919090009199199990019091900119001119191199919911109910019101191109919099909990919111111110001900009109110910910011919000090109101090110019990110199910119199101100909010919990019190011090119000109911011900119090119991090910909001111000909990101099191119109919191990001109911019191911091199099909109911190910901119099011000901091101099909090101019101000109090009909199110119000000101910901909990999901009091099091911119090900099009911911190000000109909091009190111991910909099119119901190019911999191900900091910909101119109190010009999119100099199919100991901991900010901900099091001099919101010901091109990000990991091100911900110111009010010019009011019091999090901191199110009000919119100100900011091900001910909009199910009900199011109091990901199010090199011910910009900000991000001190009990119199911999910900991091011010991091001111999900009109191019900910909190001991911999900101999000101099111011119910099191009911001990911111909099111000909100100990009090910190009191091000009991911191091090900099910911091011099001099000910919001190999101910019111091911990911119101111999011110999199010190919911090909919090091100199900010901110919999099919100009111911000110100911901111901010910000100010010901011919909011010010190191911919000199199109191090099000000919009991100010009109199110999110090111990019900999110111001999999090100090901199019900111910111100109991000001011909909919009990901901991900999990090091901009909011999191000010010009011001019111099119011090919109199100900191100009991109100110101919199100191090099990111000011100091919190999991001190100100119111919900909000001001001901990991099109119011911900100901011011999919999990110190199991100009191011910099190099110909190010919011100199090119119101199100109091999191191110910110990119019109111100090911091190109191109109099990011019109909199000119009000011110110999111990009000900101090919009110909190901911111911910091990909199199009999100909099191090000090199109100010101191011919090119190999091990990001009900900001090990001091119190190999900991910090190099109110910901001901991090990009091111090090100909190110099100919190199190191910090990991011100900910100911990901909999019099910919100190019091909090900191991191109919910919119909019901109991109010119000019191110911999190191009019101190090019011011900999000090991011900191900199190119199099100909101110110099001991011199190919991101101911990991099119199190009100001910199100919000000011999911119990910100901110911019119090010990091911990019910000909090900099100109000190999901999099991991191011019999010001099909919099091101010901911990010101910019000919011001009191991090099190091019110909010190901019991090909119199000090911909000100900991011099999919110001101019119991911990111990011199900109911190919090110911090010191991990091910110991910190919000111190999100010001009110100111109099000999191190091919110991101091900001110901909091199101919199999099901010000999099991009019001109011109101090000909910000909109990109901101909119910010909909010119099111091910190919099909109199000111109100111091091190100099100010011119091190999119111990110091101999110111910909900091919000909110911900101909009090909090099919911911910011199010109900190901101909190191909000909999099909901910010909199199111191111110010000019019119109999019191101199010000910190119100191019990910199009011101990001111111010991909990109911991110009909011111109191910100919091110990091011910019000190119199109909011090991000019111100901109191900119000919990999911110990119099001019101011099101110919111001110919990990090110991919991100019011190110091001091001999990011011911011119910990110991909110001909191119010911001111100190019091999190900911110911191901199091190900990091011110991110991101991109100191090011090009909990019990190119009111991919009099100199011090919091119901999910199909191910009199019109901991111019101110011099911190999100991090901990911191000100000099111090199191190100099911000090011901919911119100109911991091011001019199009099109011011000991001119111991001190000991909119090101000111901110111901900199199999911010000009901991001910109100010991101919090100909910990099900990901110001919911999111000110000910191100990090101100091191919990909100099910000110911911001919010910191991991011019101091100910190109119919991019199190999101090900190101911090919909919019911091100919191900101100111011919919099111010901119001091991119199190100910001999009109901119011100011001099990911111901911911100910991910000110919190190091900009999009019119019909100009011010000909100190100910910"

Returns: ""
"3919"

Returns: ""
"900029009929200002299299922999000902009990202292000900022009220220020009202992900290299000092020292292009020000999992229022290090090222092222090290992229022200202090220990909029209902209200022200000002209990990020220990990020992909922000922902900090092020929990000009092922990209029009020029999029220992929292022220902209092990092929292222900200022990200200922929009900022900992009292009000020009000229922909299990909299902992099029902022002029292220922029209022929290002202220290902222929929202029909909099200929099299292090029902022922092092220099299902002202999222202292292"

Returns: ""
"1777877987779998997898878797797778789789987888898778898999888898888999898877898888789987987877797797878898799899977789778776"

Returns: "888988998889999998999989898898889899899998999999889999999999998888999898888898888889988988888898898888898899899988889888888"
"989988989988888989989988889889989899888898899888989889898898998898998998988898888988889988898999999999998989988898889898888899888999988999898898898989888898988988888889888899988998899989999988889899999998899998898988899988899888889898899899999988998899898998999998898999989989999889888999888988889898888888998899889899898889898888898988899899989999989889998889989889998988988888988889998889888899999999888988888888988888998898888889888988888989999989988989988999899889998898899898999988889889989998988898998888899898998989899899888899999999988989888998998899989888989988988889889899998988999999989888989999888989888998888888899989998988899999898898888998899889899999899999899888889888999898989888999898999899888888898989888999999999988999999989989898898899888998888998998988899889899989998998899988998999888988889988988988999889998998989988989899999988998998888998889898888988888999889888999998988899889898889888889988889899999898999998888989988999988988899999989898889989998889888989989899898899988889999899999889998889898988999898898998889889999889988999989888888899998898898898989899988898998899898888899889998889899989899889898888988899898899889899888989898888888989998998888898889888988888999999998999889988998998899888898888888889998889998988999999989899888888899888998998889889899889899989998999888999999988988999899888898998988988989989888989899889899889898898989998888989888998898988898988899989899999998888989999889899888899899898899999888898998899898989998989899889889899899889999899889889999899989899898999889899888888989889888899889889899999889999988999888988899898989988989989898998999988989989999999999989988898889889999989988999988999998989899888889998889889898998898899888999989989899898999988898899888889988988999889998988898989988999988998899988998889899899988898899988889888988888998989988999888988989888898889988988888888988888998999898898989998989888898899998889898889889989888989888988889988899888998888989898889998899888898988888898898989989989988889898888989899998998899888989899998889989999899899889888999989888898899899989898898999899888989889999889999899998888988899999998988988889899888998999988899899898988998888998898998989998899898889989998998989889988889898988899998999998889889988999898999999988988988898888989988999989989989888988999999899889989999989889988898888999989898988889898988888989889989988988889898988888888898889889989989888888998999889989889989998998999989988988888898888999888899998988988988998898889899888989999888988889999998989988888988988899988988989999988989889898989889888899998989899989988988988988889899899889989989998889989898989988989988888989999988988989898899989998899999899988998988889888898998988888899998898889989899889889988898999899989888888989998988898899899989998988889889888889989999989989889889889888899899888899898899988898998898888889988989998899999998989888889889898998988899899888899888988888889998898998988898889988998988988888899998899899989888999989998888989898888899889898998888999889998899999888988989888889989889889888899898889999989898999998899998988999998899988988998989898999989899999999888989899889899988999898899888989888898889898899889989989889998898889898888888888989898989899899899889989899998999888998888898999989999999899989888898989989889889889888889889899988988998888889898998989898889889888898889998999889898889888998888889899988899989888998998889899889888998888888899998989889898988898898889998999998989898888889989989898899888889998889989888888899999888988898998988888898899889889989898888898998899898899888888989998888999988899898888989999898889998888989999888989998998989888989998899898989998898898899999899889889889898898999989988898989988988889889999998989998888889988989989988998988889889989989989999999989988889889989899989998889988989999899898989898889899899988899888989988989988999888888899989998899999888889998989889989889999998898999888998988988899988899988988898999889999898888898888999889899999889888888889898898999988998898999888898898989998998898989889999989999898889889998899999988899898889989998889898899988888989889989998989898888889889888899898989889989988888988889899889998998988889888988898998988999998988989889989989998899898888988899999889898899898889988998889989899999899898889899989989899898989899989999898999999898999998989998989999988988989888889999988888998898999899888988988999988898889989988989998989898998889889998899998889889988888899889989989998898988988888888889898898898999888899989988989899998888999989989988998988898899898899898989989999898899999998888998888888889998988998988899888898899989888988989988889998889988988989998988898889898998989889898889898999998998899988899999898999899998988998998898889899899989988888899888998889898898889999998998999898988989999898889988888888889988998999999989989998889989889998898898989899999898999998989989998989988899998999889999899999888998889889888899999898999999989988998888888999989999998899989888989999999998888989899888888889899998898898988899899989898899899988989998899998899988998988999988998998898889898888989889998998999"

Returns: ""
"900099019900809999181899919090899181899999991908010810099008990099919990008991089990999100890990990009901080919899919098109810099980990091981089100999000899009181008198999108999910990089108919899108900999100009899909181990008010900809009100810909000009000800909990999900901981990998099900009991999098198009009999099909019000900000908918990900919008901900098180910009899990999010891009810891090098910000891000981899180901009000998991089198090099199989919891990810009809189009900099099108990999100089100900099809990100900989918901908100000008181009090810008180999919009800990009"

Returns: "900099009999909999090999909999999090999999990999009909999999990099909999999990999990999099990990990009900990909999909999099909999990990090990999099999999999009090999099999099999909999999099909999099900999099999999909090999999009999909009099909999999999999900909990999900900990999999099900000000999099099000000000000000009000900000909009000000009009000900099090000009900000000000900009900900090099000000900000990900090000009000999000090099000000099990009900990900009900090000000000000009000000000090000900099900000000900990009000909000000009090009090900009090000009009900000000"
"487754740296571797765333511458310545411649657314444613264013680526771497807793865115370499000732648926328780727771006073855544906606268685521196646171518040152894368726294699410530450782166912222030356229224213781546592578841557276315642374465612749922298282734526649914367150472952348141280617696845489468858163780194458813642097820025967141444764815105540425567019730420232275780920590933816474583764770967849491696377944806950637533849894829624795828359505764709129686795955020089470228144822981727342557765132067641685504268646012249251354294821659755070153155391217575151178505400869596875299096450453081820808909290340653026527765139316215051190538489996094234645889497859269367491846309581433874034645079408428155826966307931494772844797232777974057840949669290429493076416887469132784878720928480793173934825128373106574669022556539263666030667128879437014252208972105019194586602310544418593535979319929067065746685814647824464352577756027401420324021604094435016064980833728134079644027510742189874059912571542164971962008631269755218680126440352356118545639940610952860065872621190412749735494518808759601923531226008043415488229498183536355962137629439466399104343475447280534468110616038372279672937334795973983738473928371731352483981861457391470406498241562381725044796403614891370719823848219412910545576804868307142704068573846589902104271404917106596479537541141932891217295154499617760716738221990976514808074216783363989608751658901828323409335210697550486845624216302135960388334546689051748096123190558991745014446843768910118610739024357614639707096034982226315459831215918136965567595707352620733326459311668110601927750055536785802124693729505294264983416949590352851954901025772178290402257193788954006939909194808829482293819157931778915868815660224958580852611025876924400690646403783377541467377862282120207032766258831192050217695935341692185596686056334144191085781706577455243584624887992987764488429933047815450217836302256290200718954414048697810928160301736629137469676222876695481494267750488190535233037421620738878310494617311118842173274760045503293151480854179345644967650062097241068027468818475656688556553087444867202376579936292309579743973678937366946829633032951840800334918282105249121324922108444572639307624172235354257167807892841629952365275366812155639424908505653538384597432994197568263939083460996846279433919209179450048879521333130684328664031714673072689491800453618412103183287615848308713756949268439604933328955947445475769623581606182350140128214405359651857449796445060314522834839936888793292176104502515682092117521428572051758519130315910801446003198204710607361874642837749887329861668672307012153856205406532873213495142230869159274804466704470485718318885370514621876997722623630048195606585788065474798245202699099479035530529345036525638479223787147322083251773916613344549978519940972447178082638990025158775363839998958784084262495923473733041791528155855286506339602152540428931292780965631574673843609710191014699327667501942878170514576430443165392598634014210255552653122435619793260007006167171224216770240299965169232279548074051619674658700061133696240400568403942739954027820349008074902686901724261736321656430327855948392424309679236832937082492279096158456994177083847758070050006018075880836343996971627191928541233503581756382876111610441104336330701753365301442503535787697309741044924188538824160497231867981584816606385443794376432899838095783518216088206169349790993546110775298195917406896405579069492500388362326820684333106802856645104517659917740362264845277761131374240708211250695896032585290236039854521711772834694836455076078784072451571795190439105929367351433348321989314959595072244862457879130492112841344427123338947993545096812915943496243458074927904720966722404097688155911298857324273198249857292554464276686957358506147746864474533512330664112006655820151298465708397848357472600136841652420300851544323734339729222186699457519544983934570601990010032191594055903715879978600895292526361264984256668405896011913362992710812760764105476650431244382883519553780372551667829207571531897768584097651501314405439864940764202856885981737907607732300389653051695528353481299206809754821321952954605595732781828322792701485732010305623416495947667888047330484638576312930016833833446649670128665428645893049425069486533816768448145574394687780500256566284159062180418238401486152171701774433673361090092884247831607603600290679260808227771834661265406684201769371004586829799127525502140657128377389443391966882827113591214356136588908619456294070773374910891241772961118184168779899296257043009470941687170907498142949999046311117125336021801211874343681575783185162006184458748988621484454020609006071480191819323492328815872275578635989177767870841036185423902150555242021337139390492670885557254967497399125636246495582431907359672331197085716470919410334547690350756557101569536694222127069330240538680558812751697180775624819320884581824508464608952954163538711119559568962139977052548723956"

Returns: ""
"1919"

Returns: ""
"15897984"

Returns: "7998987"
"193919"

Returns: ""
"900099009999009909999090000009909909900900999909999090999990009090090909990990009900099009900099099999009000090909090990000"

Returns: ""
"10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"

Returns: ""
"111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"

Returns: "111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"101111101011001011011100110000110100010110110111000100000110011100110111101110110100000001111001110000000000111000000111111"

Returns: ""
"1939"

Returns: ""
"1878696656588788876875857865688867868998767677898777789677779656977776987777898776767899868768886568758578678887885656696877"

Returns: "989898878799899988987978987899988989999888888999888899888889877988887988888898887878899878878887778878788788888887777797888"
"999787889987889778777778987889897898898798878789977777989989979779897788988988888997987999798799878997797879997779787999878"

Returns: ""
"113892245192430013013109258930090215822019194308023213201020291229022921292391301582025131940112320084329192111120922940949022424315138582315830131031020389501112514218383091432082901015150021239202822521042121023899011230228939920084110191212821008500123280904492403982432000195895029901202929398312249045200229982312520009109091122929429058038031430228520150083092212244528090293202209140313212491123214921920920123908122001009300912022929992212192319499930228231232802223989904380420223214292223021242292225089294925195900091019001424312943091231942249592201010895101213291958931300922849249128958252983194223220129923019438129801019218514095913284244938100900125850122292429308211224121923131383800090121319903020922011129950901011121432921243201921010431029240390919129015191901439001299230002838950222130212312040912214220432192589129151500020021292232109942220112292022113228211432221204300914110432082932290221229412132900019319114931995292998290223014412084121232014239812022192992101199140224492399910929949121310392805919312312108423091932083282100291519223020013983123193122211994230892993219529193013852158121418312022099521320829099301112250893839892032129180902492420939998995019210021529914301521910020122924099223012389241089931210213842220313119145209012912102243110152105219242030219590851021011028313208020508429903002800918121501999421820290938322912494510512310990382903820451315123001302082102158994209922422314510512958029023110102238319328293213013202121092919300912398111142030001302083852124431198232193202132149528099031231925194223822018222945214319423125802991122995919251223290141009893112984001110143002851583209999195285110151300021095199120151513123915015921942991922138313283851029219222811992500089520194229259190923914931929320199100852893281131002102191912300022029109900398392199211924940500124231230824309210313894249101011031302029922110201222093911831009251190001501292099232190990315022282425901925012029030082243991321114422499113929842029205099143801019328011932825150011990194411930151018451992405000982592020099001992529803029192491138300208301313214932193892301432895858031119314314381850140290249120193219292910129225159982321392012420225012591209218204232802022993019992328229931910142310299111103280944521932220850139000199992020995091922211510001909208092901129932849110909295210398251021209859020292019030090014423901031499242999921911001909322913102293919429514514403102529199519584204942952089223202132020211289944429499292022918922993290202132913220209129923080922029299492445009112202013220122309014924940258501500291421120451451492502829221132921291019912802999924299512120822452008992102029202085990102114398212149290911095912993100929190290800011510223028949902030000200083195902213021444919121111099211225191012992391230001929922021912240380290328431942202432028321239985142293190929302130201094209205195818251251301112185850912519230830212952131319390199383109430291921991430020099002028439899940430014580115193010450209811995143913010191301901825298940292025992831099422451121329824238992092031943020842439221951209910212299029319520008114290113812829022320191222992019312110119094250831212289243892312243199404943010300228398200991292021999232810219020113119130915899100201293012952822910284292250201508999430011922280292115839131383222809925022851952823131515201100149121999315191159150299990138515919925191100059911130989905209122314302849923109921843122501252144922380023822250143012312099191495213220130212398112443215839019319992025111198232899302928903220131932129391301382221191122092184931411451222422990250085219039019319923151314403820938209911231411449432921382909203802500019521180901919920992589402190131391911902115908502192024302141215191124221210932090145281131202225832190313008904308231922299042923201991021519252991521990301950099982902429420918093212030983830894231119299093901321499022031380521185215831930291502129930892250010223130123139832001922301529199039139013028922589031231302841928211321094992912998229442205298119029930222011982252012321059010451922209399929150012951101302000913210492322209212939012411052899240322212510392131022029231002224991212229322001999515291108430212402252210904031232193222195083919992299320082520810152091102908204292112411903020124322912521110120894993112022901921001321009001838313123021042310389292429223195843200899182944259132849051580301901991182501922993202122250139914385091094295922899313085029132101150890120228494225012328924931242520080129000850142949308942229224321922229252122202418241009822221912312392192999501230210229992922032899290120021190823202902802952123109432131205290220129209191444232228938995201592192512182184092492923109091290001431239992200144094231398292920320991950850200012439820429440919123199589903910328011059002983092192310100822121024121423920282321995151900939012528938380251431119508202112113193851238583151242422094904922903111030291259001231005013142038519328229322922092109202120132122189250280023852208993084291131931992430144230831"

Returns: "62992244692429962962609249929999664922009694299022662696020290669966966292296296492024626940062269994269692060620922940949022424264629492264929626026020299496062464209292996426992900964649966229696922466042066022999006229669929969994060096206920999499622690904492402992426999694994969996202929299262249044699669992262469999609090622929429049029026429669469649992996662244469090292696699640262662490622664920969969622999066996009299962022929992206692269499929669226226902222999904290420222664292222966242292224999294924694999996009996424262942996226942249496696009994600662696949926299966949249069949246992694222669629922969429069900969209464094962694244929099999624949622292429299206224066922626292900090066269902969966960629949996006066426966242696920960426029240299969069964690996429996299229996929949666629662262040906664220426692499069646499969966292226609942220062292022062669206426666204299964060426992926699666229406626999969269064926994696999290222964406994066226964229906966692992096099640224492299960929949066260296904969262262099422996926992692099696469222969962992622692622206994229992992669469692962946649066409262022099466269929099296062249992929992026629090902492420929999994969209966469964296466909969622924099222962299240999926209662942220262609644699962906602242609646604669242029669499946020960969262699020499429902996900909066496999420920290929266962494460462260990292902920446264622996296992096649994209922422264460462949029022609602229269269292662962696620996969299962299060642029996296992946624426099226692696626649469099026226924694222922009222944664269422624902990622994969246222699640999992606994000609642996946492699999694694609646299966094699069646462622964964966942990966629262692946029209666906992499999469694229249690922964926929269699099946992690626002096690962299966969609900299296699206924940499624226229924299660262994249096006026296969966609696222092960926009246099996496292099226690990264966692424996924962029029992242996266064422499062969942029204999642900969269006926924649960999694406929646009446992404999992496969999996992469902969692490629299699296262664926692992296426994949026069264264290949640290249069692669292909629224649992266296962420224962496209209204226902022992969992269229926909642260299060602690944466926669949629999699992020994996922206460000999699092900629926949060909294660299246020699949969696969029999964422996026499242999920960996909266962602292969429464464402602469699469494204942946999222696626969660699944429499292022909922992699696626950550509500000090000000000000000009505505050550500009050000000009005000595000500005005000005900000505955000050005900000000000050050900005009000005059505090990500050099005500000005000950000500000090590900005050000059000000000000500090500905550055000009500505000005000500050000095000005000000000950000090000059005000000005059055009990500000500000005500505000000000500909005005005050090900950050000900550005505050090500090500000595000995000050099005059009900000000050090050500050000509905000500950050095005000900599000000000995905000000005055059900009000000005000050900009555005000000550000000050050009050000050905900000050500555995050050050050000000905005590000900050000500000000050000559099000000595055000005900550000050509500950900000505000050005900000590000000505009000000050955590000050909505090555900000055905005900505050505000500055000050500509500599990509050950000500500009950500990000509500050005900000500000900500005005500000090000900000500050050000095000550550500550099050000550909050050000000505099005900005959000550505005500095005090000500500000090005005005000000000000090550009050050000505050000900009000005005005000005955090000000900000050055090000950000000090000090505095005000050909005500000005500550500500000550005090500590505000000905500050009000009005000000000000505000055050005995055000005000099990000000000009000550000990900900005050000000905055000000005090055090550905000595005500000900000050000500500509905005000005059500009509050059000090005005005900959005055000000005999000000000599050000000555050990005050055009050005000000099959500050005005005000950550000055509550009050005005900000055550050095505000000005000000000550000055005000050595009000550000005550000005005500555500090950000000050090050900505095005909000000050005000050500055950055050050900000505055905000005055000000909050500055000050090000000000500900500900090000009505900005090005000995090005000000505500000509950090095000000955900050090059505500500900050559000000050059000005000050090059000900500000009000000000055000000005500000009000009900000950050095500000005000550000000000005900000050055090900505905900005500500005505000590550500000095000005559009000505095500050090090000000000500000590005005009995500500000005099000000050995000900500050009900000000009500500090000950059005009005990095500050000900055000055000950590055000505000009050059009090005005050009000050050500905009090505000000000000000000505000595009005005000050500009050059000055955095500000050505500090000590000905509000090000505005000000500000905"
"1011111"

Returns: ""
"10008999"

Returns: "9999000"
"11101122122110011102011101111120111121221110110111020101002201011100112012021111000202011011201121112111222101111101112112012210120112011001112022111110110121210012111111121000110001111211122010101112011021222001111121111120012212121110121210221210020212211212220011112201111111112011111110111022202111111111221211211200221111211100110111002111101111112111211021120211002111021102021011202102001100101221122011111211102210211002122021112222200101012211011121121211011110201010212010010020201110222021210011111010011112110111000110110201120101111111111121112111012001211010110010112101212122101101001120111111010211122211210201011011111020100111021102001110111212200002111001111111212211120102202112012221112120110122121212110021222122220101111112021010110022101110121100121022011102110010112120101211221220000111111102122021102111202211021111100221011202022101110221221111121001101101120011100111121001221120110221121101211010212210010210122200122221210011110121111002201110100100221221102111101211120022021120111011111011001222120011112011112112110101222111111211111111120110200022011120121011112021201121110112222102201121122210221112111120111012110111211010122212022010010111021122211110101212111202001221111221112021002111111111011001111201221111111111110000120211212011121212102120111211001120102011102201101210222111211011110102211111111112011200120101110101021010112220221121111021121200110201122011212112011111212110121212111211211111112212122201102020202102000202101111121101121210121111201100011121112120002111111111122110011111201111012102221111120122111101211011111001211221110022121022011111111122021021212110111101101212211110020112111212200022011101121020111210002101112010111211110102110010110110211120112112101121200110011012222210212201102101110122112211101101002220110112111000011211102101112112121222101210111112110021110212211100211021121110011200100102102111010021120100110211111112210110202102211110111122002000102012211021111011101100001211110121212121221221200011000210021012211021222112110212021021021111100111101211010110102211111111020111121111111221210120102111210222112112210022121211101101101111100221201221111222111222200022121211111120021220012121110010110011001212101021112112221111221000110011211010120011210120011101122021111111222110110111121112200011110222100202111201111020202110211102102021200000101010122211111111121022111220110012110202211220111211001212220002000011222022120211112121110112122110101112200011201110011212110212211210020110111201210201002211011220010201210211101102001211221201121211001110211000221110101122121101112121111202122022211000020002221210011211102211220201121001102211122012111111111222101010100000212020120111201120202011110211120200122201111000221112111101101122211111112022110111002101211002101011211001100012211112221121112010121210011001101001112121002212002111111212122000222211122211112210212200111110110110111212122001221121122201211120102101212211111112111102011111111220101101011210111100111112012012021201121122212011221012001200011000212212212121212101111210000110111011112011221020100020022111101111220120201101221111111201100102112001011120120100100211001112112011200111221201112001121111101210122212121121110120111211000011121101102220010110111221122101110120110221201222221011001100212110121121102111201101101001120101111211101021110120001211102012110111022000221211121102001111221210110111101121212012022111111111022012122001112211210011111011210111122102111112220121011110211111001122111111111120002121112111000110211112101212110112111110120200020120202020110222121221111111211211121212101121211111021121211022110201100212112011112112202221101012010101110102100211021111111111220101111011211122201210110220111020102110011211102120121212111021211202100001111111111112210211110011011111111120012021112211112210020211121210101111222112011101001022021222101011211101121011102111121112201222112110220122221101112110212021111012102111022000201102111111111211111122210101121121111021111002122210011011111011102112022002111210111120112212200100101110220011112101111001212222100222101201001221201011210112112201102112210012111100111002110110110012111112212201110122020211012200111112011220211120112022120111111100002212211210102121101001120111022012100112101110122001101012021111110102222122212001121212122101102121112221021120220102111221211111110011120000221211101110020112011100102011111011010201211222111201011111102110010110122121210121101001101011210021011121112111111111110102110201101100011101121111001011111001212022201110202001001021201010201111011212112111011221010100222221112022120011201220111211111022112210100110020120211012020112011120011202112011211121111110111120011101100111211112200211211212211111111120222011101111111021111111110221111002221211221202001212201212101112121221002111112111110022212011021110101022111211110001100012111111121001212101101111122021110011021102101221021121110111110122211121112110211011020200011112021021100111010220010102011101101112212111102111110111020111001122122110111"

Returns: "11101122122110011102011101111120111121221110110111020101002201011100112012021111000202011011201121112111222101111101112112012210120112011001112022111110110121210012111111121000110001111211122010101112011021222001111121111120012212121110121210221210020212211212220011112201111111112011111110111022202111111111221211211200221111211100110111002111101111112111211021120211002111021102021011202102001100101221122011111211102210211002122021112222200101012211011121121211011110201010212010010020201110222021210011111010011112110111000110110201120101111111111121112111012001211010110010112101212122101101001120111111010211122211210201011011111020100111021102001110111212200002111001111111212211120102202112012221112120110122121212110021222122220101111112021010110022101110121100121022011102110010112120101211221220000111111102122021102111202211021111100221011202022101110221221111121001101101120011100111121001221120110221121101211010212210010210122200122221210011110121111002201110100100221221102111101211120022021120111011111011001222120011112011112112110101222111111211111111120110200022011120121011112021201121110112222102201121122210221112111120111012110111211010122212022010010111021122211110101212111202001221111221112021002111111111011001111201221111111111110000120211212011121212102120111211001120102011102201101210222111211011110102211111111112011200120101110101021010112220221121111021121200110201122011212112011111212110121212111211211111112212122201102020202102000202101111121101121210121111201100011121112120002111111111122110011111201111012102221111120122111101211011111001211221110022121022011111111122021021212110111101101212211110020112111212200022011101121020111210002101112010111211110102110010110110211120112112101121200110011012222210212201102101110122112211101101002220110112111000011211102101112112121222101210111112110021110212211100211021121110011200100102102111010021120100110211111112210110202102211110111122002000102012211021111011101100001211110121212121221221200011000210021012211021222112110212021021021111100111101211010110102211111111020111121111111221210120102111210222112112210022121211101101101111100221201221111222111222200022121211111120021220012121110010110011001212101021112112221111221000110011211010120011210120011101122021111111222110110111121112200011110222100202111201111020202110211102102021200000101010122211111111121022111220110012110202211220111211001212220002000011222022120211112121110112122110101112200011201110011212110212211210020110111201210201002211000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"191919"

Returns: ""
"10938300"

Returns: "5929005"
"186656886779667678765757867998688666996899677978887877766857865687795577597785677678768687759675855877668685576788596785767785797797877768876657657788768777778995968886788676787576776887876767768986677556687768657878775757777979689767788566897588677875996876697697778655775687578897689767786766776866887786968769899665555865768666667895877689796977896877876667988876967786879568666978779957877867797888785877598777969977688586789686857768767676686576978968687777778576568667758896887879878688966787976687865797966876789757788886687897957977668998786796789978588679878887787877779777786887665887978689968878598877768768566589798877887776796788756678577777767767757699677575668597787888786886767657568865775866768855977677567897798597786759977587867677769869666687775689775687787898688766876778686799678988679767575777787876577988687766887755787597679876797856776576897796798788558868877767978975857678885576786767758767776577675788777677678776676589566857767686767776867676795769869777886775778767969689787889776787677779598675859777797586779677886896576775876879875888669768666686569878856658686976688777887777865976889788576856788966757767788777678887787876757995668887768696788878987868658877778778786765796578978955975777795678757967895786899788887696687797978987866576667869798589668667596977789766767897756666676565766596767776596577688576655578667697787789887797859655578687795858596876575768878789668566975697777997776867678776878878979776769699796866676776685868776686996756789586788785789677776955566657787885769676755675676778556867785877776798777668878866676789787768788796888978778777756767987667977769788865878977588978787876768578587669688787689777887689668888695688776776876986689767766787758875667877785878675596577668678889768657786878586766788867887787866667877596768887797676776587876878779769769888579569586775797786556786799569877768688756677666796678887777868579977678678857788587877778758765786867865867796778767956987979585777566867668788567676789875557788678978565669757876897897886879668777588767796786876796678667969898787857787969777587879759885776676775887866689786887676768686677855878967887868688977968777977577697768877898777585789685795765667777889757859678585667677768797986765567788966678557878577868586679779855867698788799677699667956579777889767679768888777977799867666775787778987665698877777666797689877799677568565867876786976757756796868686878886768898798789879876676889687779777777598687765956787767897876787688697858777887697686776888878776765867878699899999899687876856767787888867768679678877785879688678767879876778765956778689577777797778698867667897898789789886768887868686869765775767968767876856586577699777898679766677777889656678987778757766676899777977788886797676798877797565976699677699788789676855897797668586877587875587666988776556768979786777676658587695875798877776656759758698758577789877886779677577977786977988686878876987855877668686767678868798666878857767667758895797878577796978775878789896976687669767868769776788577786697868879879867875796656587987688775557898767676588786676866577758597978965976787769776856876868756785787777878588775887687677997586877778887669766677665788686777896599768765568779757768596597588896796797787867878567767679778886769577876666878778876888766768587868775686798887686677569557687858777876657885778766776798668967867767788659688886698678877798678788696678587586767878787988577987856888796777976678976765777787787988869788786778798767666887886677789767777858776865587767657655767696758878775666555967777698758788768598765769968667786858667767666869799696767797987887867787676867779977779657966586698787886757567869585859778687555695879778898778779676687555667588677569567776769566756567666665779876766798777969576686698589796876667566878987979778669678888799868759876975787659777757955987987569756768787787777885686878987888769686778886659975767878778887677788776775766988765867588798867956877778877788667968685665887896568666686796688857897867857767569868877697768579777795857689597777678767798878798696976787757768877796896759767676867776768676775866598567667787677677788757677567776785776768767558887675857987976777886885588789769779867567765879767897679578755778866778688977567878777757576797688987699768687767866788689878778657798657778666696896777676878577995768779589779876577677955886766857756886575676768868788878779586657577699675776776777777587665788769767778877889798566586786777889587886998687978856678868777797777878778887897688587998769768789986677975979878668888775798767866979756878667978766988687897878869885776686567587777778686987967568667676786775868698768588677996977789577858788879776877875997787966686597868776967888976667877869877969798677859876666686756855556699896786968778866867766768776798679887578657755687779679667869957877688579866588776798697977775757787875686778665577668986776767878867767578767688768886959987777786788775675667886777879779758776758769588767558686677855857695778686787677658779577559778656875866777878887977699869966688689976875756787676697768865667"

Returns: "98878998889888889887878988999899888998999888989998988888978987898897788798897888889889898879887977988889897788899798897888897898898988889988878878899889888889997989998899888898788888998988888889998888778898889878989887878888989899888899788998799888987998988898898889877887898789998899888898888888988998898989889999887777987889888888997988899898988998988988888999988988898989789888989889978988988898999897988799888989988899798899898978889888888898788989989898888889788789888879998998989989899988898988898987898988988899878899998898998978988889999898898899989799889989998898988889888898998887998989899989989799988889889788799899988998888898899878889788888888888878899888787889798898999898998888878789987887988889977988888788998899798898879988798988888889989888898887899887898898999899888988889898899889999889888787888898988788999898888998877898798889988898978888788998898899899779989988888989987978889997788898888879888888788887899888888889888888799788978888898888888988888897889989888998887889888989899898999888898888889799887979888898798889888998998788887988989987999889889888898789989978879898988899888998888987988999899788978899988878888899888889998898988878997889998889898899989998989879988889889898887898789989977987888897889878988997898999899998898898898989998988788888989899799889888798988899888888998878888888787888798888888798788899788877789888898898899998898979877789898897979798988787889989899889788987898888998888988889888989989989888889899898988888888897989888898998878899798899897899888888977788878898997889888877887888889778988897988888899888889989988888899898889899898999989889888878888998888988889899987989988799989898988889789798889899898899888998899889999897899888888988998899888888898879987888988897989887798788889889999889878898989798888899988998898988888988798889998898888888798988989889889889999789789798887898898778898899789988889899878888888898889998888989789988889889978899798988889879887898988987988898889888978998989797888788988889899788888899987778899889989787889878988998998998989889888799888898898988898889888989999898978898989888798989879997888888887998988899898998888889898888977989988998989899988989888988788898889988999888797899897897887888888999878979889797888888889898998887788899988889778989788989798889889977988899899899888899888978789888999888889889999888988899988888887898889998887899988888888898899988899888789787988988898988878878898989898989998889999899899989988888999898889888888799898887978898888998988898899898979888998898898888999989888887988989899999999899788887877878888888878878789788888887889788788878889887888877977888789788888898888798878778898898889889887878888878787879877887878978878887877787788799888898789877788888889777788988888878877787899888988888887898787898888898777987799788799888889787877898898778787888788887788777988887777878989887888787778788797887898888887777879878798878788889888887889788788988887988988787888887988877888778787878788878898777888878878778878897898888788897988887888889897987788779878878879887888788887798878889889878887897777788988788887778898878787788887787877788878798988977987888879887877887878877887888888888788887888788788998787888888888779877788777888787888897799878877778889878878797798788897897898888878888778878789888887879788887777888888887888877878788878887787898888787788779778788878888887778887888877887898778978878878888779788887798788888898788888797788788787878888888988788988877888897888987788987877888888888988879888887888898878777888887788889878888878887877788878778777878797878888887777777978888798878888878798877879978778887878778878777879899797878898988888878888787878889988889778977787798888887878778879787879888788777797889888898888889787788777778788788779778887879777877778777777889887877898888979787787798789897887778777888988989888779788888899878879887987888779888878977988988779877878888888888887787888988888879787888887779987878888888888788888887887877988877878788898878977888888888888778978787777888897778777787897788878898878878878779878888798878789888897878789798888788878898888898797987888878878888897897879878787878887878787887877798778778888788788888878788778887887887878878778888787878988987888887887788889879889878778877889878898789788877888877888788988778888888878787898788988799878788878877888789888888778898778888777797897888787888788997878889789889887788788977887877878877887787787878878888888889787778788799787887887888888788777888879878888888889898777787887888889788887998788988877788878888898888888888888898788788998879878889987788987989888778888887898878877989877888778988877988788898888879887887787778788888888787988978778778787887887878798878788788997988889788878888889887888887998888977787798878887978888987778888879888979898788879887777787877877777799897887978888877878877878887898789888788778877788889789778879978888788789877788887898798988887878888887787888777788778987887878888878878788878788878887979988888887888887787778887888889889878887878879788878778787788877878797888787888788778889788779888777887877888888888988799879977788789987887877888787798878877778"
"898888778797999978788997878799789788797788898987898997877899889999999989897999798879977778998978798988779789778998787788777978878787789778777878979988797979887787989897979797899879777789879789897777789878997987979889988779978789779889998999797877789898977989779879789789798887997977787779998889799898798888979897987899879779977779788799779979888779787979999987999778987888898778799787887787888999998889988897879888997879979977989989798879878778879978879787799877889988789999797777998999789978788899888887877979999787999899798879979877898777779979778987999888977878798789777987888897889999879997888787999998879887878898787787789989889997878887897797997898777789789899877798988798798989789888977899877798787889778987797987899897798888979788978789789788879889979877799879897979889787778879798779797998789778979888999798878987778888789787779779797887878799879878897777879979897899797899888879979777899979799877978798888787789998877989888788888777798777897777777978777897977898778898999897898987899778787979997999989787798797998877779978777899977987777889977997887998797889878898788997788978998778989887789778987978977879979889997789987898799777978889887789789887889898999879979979879979978999897797787888778888879899999799989797899797978889999899988778787889777989889879879977787798987799977977777799897779988897979989898797978887989787877899777987788899777877998998788787897997899997799778979879788799979778989978978997778799877779988977898887979887877778999988978977899887897979889887797978878988797799989987898778878777788997899897888797987799878898989777988777899798997878898787878978988988988987799778997779978879787798979998978889879978987998998899879799998879888897798978999797998787797979798977778878877898999999877978898977798889879898989987988899987889978899898899789788797799799977977799979978988799787898978788899877778799987987777888797777779897999897799897987997999979977799999999798899777798897987897878797979998989789877777799877777899788789778997789799787998897778979897999787887789877977799979797897878878979788978998777789979897887977977777999998797787979888898799787789887977787979787998789977879897989987797877877888879777788997779988988879888898977897798778877889797887978879779988877997997798778889989987888997878997988999897887779799798877787997988887997999878777779979987788879899878799898979988977989789898997898997797979998998998799878779778977887788789788889897998898989978788798887988787998779979998877797777778797787899799997898787889997879978779878988999998998999797777897777798888978888777987978977978788977889788987797989797799887787787799999899779877789877988997899999877788887897888998977978777778899779789777777779888887899798887989987998789897997999997778999797799998789787799997997887888998797887797889989889989778997778889787887877777898799878999799999798887889977998987889777888999977987977899987889889788789898787978879998888798997988999789898797779787779879889987778799879897879777887778987797979898999998799788989788978898978979997787787997887888989779987977878779989997878987798989777798799998878798789797979979878998888987888889987779787779998877789898977998799978997788888887878979989788999988897988979879889989777877988789889778887897898789799787887778899979888778998997978978879998789879989788779899999877798797779798899897987798889779787987888877778997898999888778877878997877997777898879787787887999878987989799988988978888898878897878978887787979999897798988888978988779897989898977978989889987898877998898878997877898987899797877897887888878779899977979888789777989988998897799887787888979778878899998798977799798887798879797899778778999789877798899878798879798878798997988779798789898797888888979899778999777799879777989787889977877777879878877977789889887989879797987999879779989777778777797978788999887997797778998979798977887987799777798897979988799798797798898798779899888789778899879889789777777789987989978777798798887879987897897799777797989788888877777897977897879788887788788989998787989797777878777879777789887889878978889797798887887797989979999799779987777897799788788878779989878889987797897987889989798979797777798887887798899787998887878878877988877978889987988799879787779978777987978878877979797898797898897799777889999789998799977988999877798877978999898897898897889998797999989978878989899797978988878887789787997789797898977777897887977987799997987877888989879889979988779777989999888889798889789999878788899989778798899788779999879998899789979897978997899889789878797899987797887899878897978788779779877787878789888979788878987979899887988778999797998887897998798987978877988779979979889997897779978978898987777998779779997798797888899987997877988978788777888788778779879877788898989788889878777898789887899888788799878988877978988897879897978898778877887977978978889778777777978887999788988889997999797889979889898889887899779778779889797788798978787998799978979978888779779887799978899878778988979898979898778898888899898879978788997787987989779897999798878799798997787987987989899798797789889978897798889888889789888798799998"

Returns: ""
"179787789887787788789878988897787877878989879788799787889987878878798779897889797878778877898899898978898778887788789889789888998989888898787778878798898888877877788888989889788798787888877878998789797788998879787989898777779777878887997887879878779898887878998987999889888888987889899788888787998799889878998887889887989798788877788888789899887877887888878998888888897997898878988878879787779788898988978888799788888898777898797988988797887888897998787988888889779777789888899789899988798797978999889798978788888888889898978889979788989887899888889988888897988988779789888898888879788889788779887997989897779888887877898797778888888897798787889898878899999999777779788898887998989997777878989999888797889888898788777998778887988889977778799878889998888978998889998778999888877887788789878998878898899777888877878977889889797978797888879888988788997789888888897888899978788787878988887989998799779899877877788989897788889798898878988878798978799789777798789988997888998888988888988897988888987888978778888878899889888799799789888797898889879898878798788887988889888887989878888887798988899798888887989888889878987887988898778888978988978888887888787878899878897889888878888898889787789887888988889888888897998788778879888989878799978788998899998798978878888899979888899789778898888898878889997788878898787989888978788887899998979997988999797879787889979788899778888888879989778778898799888888788898878888878878887888888888888887788788899987888789877897898987988777888888888999978887788989789889898988789888887879888889988878988887877878787988797788888998978897777989987797898888787997889888779888999788789888989889987888779878978888888888887777889879777998878898889878798898899877877779889797998897888888989788777978887787787889998977798978787788788979898888887799978998998888888897789889887887778897787998987897878989897887889988978898889989788898788889897878998877878797778888888899898989789788977789888988987888998899987897978988879887999988978788988988978977778977798888878788887887789897988779879788987789798889889889879898887889887878898889988898788887998989977988877888887898778889898788789888988797888888888778978977987888788888878779878889787997888888888899888899989889889878988998979898789888878988897988898797977888888979987788889887878987878798987788879887787787898889988987888979897787897899798988988989788988897898978787887889879989898798988788798797989977878888988788878987788887788788798989998798878878977798878897888889789898977789788888988888789888887788787887878779898887899879977777997899878889897787878878788778888898788888988888798777989898798888879887889777987887889789998989788788778888778987888788988887877998979789788788989789898997898878878787989879888988798988988989799879878779897988878988998889878778778897888778989787878987878898888778997988888877979789888979888987888898789897989988987898898898999888899888888888879978798887897787888888788878977987987788888888879788988898788789898887789878888877888977998989978888789888998889887878898878889897898898898889798778988797897788979898778878888787888889777987777987988988988787988999978897888987979878999889988878988988898777988798798989899888888887779787877889987879898888789888798998889887988998878879898987879878989978779887778878898898779888888889989987999778888889897988788778787989777989998878778778887977788798988888879889979798897777877899889889787898889887889977797898877778888888888887987897788878998898988898788799988897788898879978788889879778998977779887989988888779788978787877878888987888998888897878888898788989898898798988778887999988888888877788978989879877898788878999888788778888888888888878887887888887889888788888899789887787798997888888887799888797998878797879799988979997989999878888787988898978789887888779998887889888889887798799888897999888887887989789999889988787999787898988897887788789979888888898888988878898778798889888887888898879887899887878788878888887988987988887789888978878987898888898978888889799888989778888887898978888898888978888789787889897898889879788898799799788898899887888887787988878988888979888988888988889988879988998789777798799787989787888987889889798888779898988777877899897799789998978888987878788787999888879888888898779988788988897888879787979798898877987877888877799889887889987898788778877888899987789998889987988889998887899787777998888978887789977788789888898879788899998987877779998989978889888797777799999999887889898878789779888888887779789877878888897779898979978897788798888797888889888898797788988979888888998888899878898988797998887989898888888888787989798899987979789788999898799888898777797798888888978789979888878879788988979789877789888888799788887988989888797778797887888987889879979888888889987888878877878899898788888777888789798978898878889987898899789978788888799898878988888898899978989987878889897787897878879978887877797777789898978797889988779798789987877888878789788798898988888777877888889889787887778789888898989988898798898788778887789887989899889877887787879798879897789787887878998878799788797898987877878779888987898788778778898778796"

Returns: "89898899998898899899989999998898988989999989899899898999998989989899889998999898989889988999999999989999889998899899999899999999999999999898889989899999999988988899999999999899899898999988989999899898899999989898999999888889888989998998998989989889999998989999998999999999999998999999899999898999899999989999998999998999899899988899999899999998988998999989999999999998998999989999989989898889899999999989999899899999999888999898999999898998999998999898999999999889888899999999899999999899898989999999899989899999999999999989999989899999998999999999999999998999999889899999999999989899999899889998998999998889999998988999898889999999998899898999999989999999999888889899999998999999998888989999999999898999999999899888999889998999999988889899989999999999989999999999889999999988998899899989999989999999888999988989988999999898989898999989999999899998899999999998999999989899898989999998999999899889999988988899999998899999899999989999989899989899899888899899999998999999999999999999998999999998999989889999989999999999899899899999898999999989999989899899998999999999998999989999998899999999899999998999999999989998998999999889999989999989999998999898989999989998999999989999999999898899998999999999999999998999899889989999999989899989899999999999899989989999999989999999899889999999999989999998899989999898999999989899998999999989998999999898989898999989899999889999999989999889889999899999999899999989999989989998999999999999998899899999998999899988998999998999888999999999999989998899999899999999999899999998989999999999989999998988989898999898899999999989998888999998898999999898998999999889999999899899999999999998999889989989999999999998888999989888999989999999989899999999988988889999898999998999999999899888989998898898999999988899989898899899989999999998899989999999999999998899999998998889998898999998998989999998998999999989999999999899999899999998989999988989898889999999999999999899899988899999999998999999999998998989999989998999999989899999999989988889988899999989899998998899998999889989899998899899999999999989999998999998989999999999999899998999999988999988999998999889999999899899999999898999999999889989988998999899999989889989999898998999999999999999999999999999989999999989999899999989999998999999898988999999989998899999998989998989899998899989998898898999999999998999989998898998999899999999999899999998999989898998999989999999899999899899898999988989999999899989998899998899899899999999899989989988899989998999999899999988899899999999999899999998899898998989889999998999989988888998899888889898888888888888888888898888888988888898888989898898888889888889888988888889889998989888888888888888988888888988888888998989889888888989889898998898888888888989889888988898988988989899889888889898988888988998889888888888898888888989888888988888898888888998988888888989889888989888988888898889898989988988898898898999888899888888888889988898888898888888888888888988988988888888888889888988898888889898888889888888888888988998989988888889888998889888888898888889898898898898889898888988898898888989898888888888888888889888988888988988988988888988999988898888988989888999889988888988988898888988898898989899888888888889888888889988889898888889888898998889888988998888889898988889888989988889888888888898898889888888889989988999888888889898988888888888989888989998888888888888988888898988888889889989898898888888899889889888898889888889988898898888888888888888888988898888888998898988898888899988898888898889988888889889888998988889888989988888889888988888888888888988888998888898888888898888989898898898988888888999988888888888888988989889888898888888999888888888888888888888888888888888888889888888888899889888888898998888888888899888898998888898889899988989998989999888888888988898988889888888889998888889888889888898899888898999888888888989889999889988888999888898988898888888889989888888898888988888898888898889888888888898889888899888888888888888888988988988888889888988888988898888898988888889899888989888888888898988888898888988888889888889898898889889888898899899888898899888888888888988888988888989888988888988889988889988998889888898899888989888888988889889898888889898988888888899898899889998988888988888888888999888889888888898889988888988898888889888989898898888988888888888899889888889988898888888888888899988889998889988988889998888899888888998888988888889988888889888898889888899998988888889998989988889888898888899999999888889898888889889888888888889889888888888898889898989988898888898888898888889888898898888988989888888998888899888898988898998888989898888888888888989898899988989889888999898899888898888898898888888988889989888888889888988989889888889888888899888888988989888898888898888888988889889989888888889988888888888888899898888888888888889898988898888889988898899889988888888899898888988888898899988989988888889898888898888889988888888898888889898988898889988889898889988888888888889888898898988888888888888889889888888888889888898989988898898898888888888889888989899889888888888889898889898889888888888998888899888898898988888888889888988898888888888898888898"
"1999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999998"

Returns: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
"1081221012101830201220931110092020301001920901030812010029110309919101310020299100191902010209211203081919290231009190100398100199209221020082290030892019090019920120011011091001912292230811293091902011100011000999110920120921309110090309192021099202002211019318092108391990029299213011991309218019120003010120289191109911200999119100011023038130820109110011112010101012302003902002999999100100921912010111000099918001901010211111001302100110819989102011820201122089220108929010920009931012038299201992021892098119103820190100011982120210290111002099019931199090113823013009993092921012100829101011800939001892029100289193009008129100191082130930139110020129103109920110291010000901929000119010391001891191911000912110182010118121101129228101021819092319003900910810100100280102089109921013902921891019921209200912901100908228289022100901891038382212893811901930110120011090911201000220021020000390911009220180100129282991302010109212019909010020192209222200091921901110101199900211002990390100991102103031029201003030020011090002931098910001108209910110020101011110903020009010201390181900110119091210299992093031012190118190818110029292100220099202022009101820003910301922291108120002221120090102010203818192089901000310191010013082310103082108210900911010110210121892090110031012901911020193102110110118999921010993102001093101209111000219890103181109200281282292119909901011893910010021202100110119382011120119100111011200929928091281129020893821809102231091129010930183821101093109002119111190201200192920821990000211001283981001101202000310113902001922290091912189300992102231093010829110030123828301290309830310283891219219299991912102209909200011029300028302111812301091021828281219231822122200911012210080011030091918109201930991110010089020123811101010109289999283100989280281129200811189902990002118129100819990299820192002110030100108911100021381920308193991091092181110211019091000111020291102838211909099911910011101020200919111100209929291128119093109100901092911921309821920111220238199101829119010111020110289918012000219298391030910110910111000211092981111923182081110182008010092019221201100130991912109019092019199010121199190892011112910001829910110900901100910209009819200000999921981298020019209203821810992910030011198210993091310001001010112039019012989302102101029310090310090183890319910192980912090801013090101210829121092030001091309201900289200198200199002100202918019921091112100030311019191301181203012119211001210911901908199220002101019101892108101902110901230010011001010922110110218101900209101909100210912992909109009012210101911220301280202191921103021090211190129911918201110210981092990992082108102002200109930201011939001201189210119089119198192119902108380101002091102931090310203098121910830112010000111002200300003990020920019300019028302001911011981299019999109991929900891019111109009000019939099909211120209080991122000991920190911000219200021100201122910300901899291010189290229111298200012011001019011020031183981913099111810082001030012110801939090992822022111029139892129119300119001900290912811192930002101111810092020001120909120001909003838101193021111000190909013110190190201198292893019282121101010890002031000309192029981099928990922900310098110090028991921281182099000382000082011010100028222011090010000200029201902918100931000190001221118991221239022912282829010200102229100303811092931109992019891201219199992912912208382103039893181203828222031011829009301022310200093090119191181229209218212102109201211099198381209012000099138919291002202191100911310900300111028390930110811201022300918038308910921281191819930091121002101910911120282912101100201131010018309109010019910192381282092010190201109902100101001210290209210300011020000911001100310292021118118121031001189209012101012000119010102890389311002389221009092103099010089192818302010102189911122210912890192229203118309928001910130201991013100192930902819081901190121030290299993002201911001108191082202110899920318901121100911100019903900109910990029310090010920930210101931030201310100091182099211002009991101011109129200991222902292021010909909113011009202199381922090190913010119082109921010023100091119101109911012029218028308112383820208118990221082813909000118119102001129920109019318210130001089101181111000919019008310902290928031091812921211012901109281110120100009191208110183110911000819219000010182110920010311812011111822030021389092090922900899292082101820208110829018020111828990220029300299910220238211101991029921989210111082102011399109991181028311901989209010299201993830121029901020011820891013089121103029109102099819011000202111110013109009101809990109012010119129110990999999210218309202221100910111111111891028922830220121001802000091120010092082012010309911911902002199120212992921199183900191902921101200302001010292002101011892129022020101000099011101109109200292128922292219209090121001012019910101909208931081389910123001992091982001091911022092919289301113002109218092090993021002200920003100921109128931108919111093020191111030012103039100121012289"

Returns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
"90902229222999000000990002090090292002222022229022929020922090020999020999220209290090909220200220099900992099092929909222022290902992290990090209022020902229990090290929090200092202992909902229999909209299929922220090920000922292290292202202990020202090929202090029020222200922200092002220020929222002990299209290992290209000092900200990299200990922290099202900999292929200922020999990229000909222929920209922009922000099002900999009202222909990992200922029202000022902202200922900202229200000922020200220990299002029290929099920209222902999022209902200209909909002000020292092920929002200020299909922920229920290000029220290009090099092022990299092929909922099992000290020290022920200200992999022929029229920229029029929029090222090290920209290009202900290029990200209999090922929909920022229299202202020099922220029929299002299029909000209222222929202200200902000292992092009002920099092099292922299029299900090900020920292990090202990900990209022292009092929920229009222920290900222900202222902992220902009920202020002200000200200229220009922099029922200099992909990920920022029920900900202092000299992929922092902929020202229999029929209999929202229209209002902029009292222200022290920222990292222000099220092922992290999209029999009009209292209299029222092900020909990099900222299020022999092292020299992099200000902002929992920999922922299222909999900200999220029090090200902929092290000929000299929292222092209090022090229992220909002200022020000090922999900092900222000000020929209292929029022029292292922999290992022009222929020902990229022299090209929009000902292900022292220200229029022990090092222202292002092909020999209022099229902209000299920002992009292009220992090920202900292290999292092090290292200029900920909909990990002229209902922229099229099099009292200920009209090922222099909299292229009299922092990092200909922220990202922220990029229029900290000220922992992299200092029009220000209999999229990922222929022229299229990092020999229222009029020090909229009002099002009929000909920292209020020299992220922900299929090090292229909000920220009292999902009929902022292992200902020990920990229992920920292220209002002022200909000900200092092229929922209229000902900029029909909009209092000000922222992209220999020909202202092002099200999009299002209090092299909200099992090999922922900090020009992220090900920200992929022022929909290909299090929020290990009202209200002909200099009909992202920022009920990999909209920092299222009092920920900909999222999922002299992292220099290299209999202920990200292292290022000990020202229220929902099000099902092292209000222299909092002990022999290929022002920999902000202200000222929000902029299002920920902009990009900990992090900929209092009202000002222290029092200029290909022999000292209909002209090020022222090000000990090990020090029000200090902920902209090222029999992020002000029222209009922222099009200202902092099092929920992009009292000990009290929202909002020920020992292002999022202902229990999290029909000992090999299090220922092000029209020922299909220020002299202222992229999200022020222229200022229099202992999209902920999900292000999090009002920909009200229922020292922009209909092092009202299092220990200929920992000920009002229202029920000929992909029022900290222902099222909290290022929922292292999222929229090099029009202222222992900902090290920000929000029220000220000902992020200090009922099000900200090202209992999209009099929902220990020092099990902202929920002209929000909020290290290229202099990992022090929029902209290920290222209909209090902009090029290900099200992209090290999000999229999220902292992902209022920000992902299222909299209290222299202009002290209990290920902900200020920020009909002909092229920929002999900020902992922020229229902202922992299200020099290020200022222290022002900209229299222990000999920290909292992200220090002002022099229009092002909222229909022000290009020290992929299990000220002922029029900002220290290992222229920202022909092909929000992000009009929002000020202290200229900099090009092902290992999992909090229020029290220290029229092992929020920200222222092092929022022009299900200200902020092292209990002009929222200209920092099029922009092200220220009292020009902900900009009202220209029999090299292929922922220299902029229002090220209292092992290090990929992000220202902999992920020999999999229209000002002909090200299090999992999990299202229292220090200929290920202929029202902202000009290209022929222900992929022209999929090929000020002090290900200202009020902200999900902929099092090920200990999990220299000909222999290020999909220209209202922222920909909299002022009000002020092099909909290900222200992900209202092909920000002099992929992020009902009292029999299909092900999229920922209922902020202999220290909992029999999009200009299922292909900920922920299029002220229992922229002290092290092929909009990292009999092202009900202900202229002209092990902920229992909900000002902202922002290009202002222090220229000929092900000022022000999202220290000222009902920922"

Returns: ""
"1999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999998"

Returns: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
"1999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999998"

Returns: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"
"22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"

Returns: "22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"797998787888998797977977988987887798998797988877877897888777998879898878899987877979877877888998987899879797899797879997778888787978977777988888979879788787778797987879887987777788989779789977798898877988887997979998988988789897888998998787987779977897979789979878899989987788989998787797889888878777878787978888988799888798899897979988779997898887997979779897878978777988787789978877988987888897897888877777779889978978979999878777797977898987897788788977879888798987987779877877997997997777897777999877987777977989897997898877779878779799897989778989977879987797998787879879"

Returns: ""
"999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

Returns: ""
"999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999"

Returns: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
"1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"

Returns: ""
"2010102"

Returns: "2010000"

Statistics

Problem Statement for "AddReverse"

Problem Statement

Definition

Notes

Constraints

Examples