TopCoder Statistics - Problem Statement

Problem Statement

Did you know that "Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo." is a grammatically correct sentence in American English?

In this problem we call a string good if it satisfies the following constraints:

The string contains one or more words.
Each word in the string is "buffalo".
Each pair of consecutive words is separated by exactly one space.
There are no spaces at the beginning of the string.
There are no spaces at the end of the string.

For example, the strings "buffalo", "buffalo buffalo" and "buffalo buffalo buffalo" are good but " buffalo", "buffalobuffalo", "buff alo", and "cow" are not.

You are given a String s that consists of spaces and lowercase letters. Return "Good" if s is a good string. Otherwise, return "Not good". (Note that the return value is case-sensitive.)

Definition

Class:: BuffaloBuffalo
Method:: check
Parameters:: String
Returns:: String
Method signature:: String check(String s)
(be sure your method is public)

Constraints

s will contain between 1 and 1,000 characters, inclusive.
Each character in s will be a lowercase English letter ('a' - 'z') or a space (' ').

Examples

"buffalo buffalo"

Returns: "Good"

This is a good sentence contains two 'buffalo'.
"buffalobuffalo"

Returns: "Not good"

There must be exactly one space between two words.
"buffalo buffalo buffalo"

Returns: "Good"
"buf falo buffalo"

Returns: "Not good"
"cow"

Returns: "Not good"
"buffalo buffalo"

Returns: "Not good"
" "

Returns: "Not good"
"buf"

Returns: "Not good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffal"

Returns: "Not good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
"buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo buffalo"

Returns: "Good"
" buffalo"

Returns: "Not good"
"buffalo "

Returns: "Not good"
" "

Returns: "Not good"
"balbul aaul buubboub uboo bbbbufa obllblabufafuofu ufaubluufbooaoufu b babl boau fbulou llbfbu olouoafb olfauufubba ll a u ob ufbobuf l"

Returns: "Not good"
"afoofflooofafll baooa oboual lulub uffblo o uufllau fblffu alub bfoaobuallauffu luulaffuooofubaol aubbab lauuu aoabbooffb fffaluf oluulfbolbafabubfuuuaf flffoalol b ufollb ao ofobalffbfffauoll baffa flabf lfuouobbbufuluaaobobbbuabalaollfb ooulbaaaluaa foolual aob oau obflbbbaabf ab aooofbaubbl o luoouabloulblbb ufububufuoofulfuflooflbullub blfabbllu fau boofuaolu olfuafao fbbfobaf lalbalfoufuf ul alfaf auaufaabbfaa ouaaofa obofuoffoaublal o loolb obaoal laoofuff ou ofolfbbl fbfbfb baalal loaboab flubuuubb"

Returns: "Not good"
"ab uuuoufaalol bla bfofa lffooabbllaulaollofufuaaaual buaufobbfofoaoouffluaau ul ffb blab ofouuaobllaou floolaf l lfuulbuul b aabalaabblobfbu bfabuaaaaofaafaua a alu f flflalau bo lbobflabu ofaal a uafbfb obafblufafflobl ual oafoobu l uufbba ala fof bllua aaaoaalaaoofoaoaffflfuubulaa bubuo bbf olbuuuua bubuaffob lfbboaaouaa alfablua buaoabbobafalu bblaabfaaobbuabafoolboublo abl ua ublbaaaobalf lfbuofaufl lllfa lfuaobua ub uafafl fab obbubbafuo blb f auuaao aflblbfb flabu lffabalflalabuobaofoofoflu ul allluo oufububfululfou uoulafofofloauflbbol ffolfllluu floaubbaol fooubbblof aulblololof u ulf oblfufabfollba buubfboo ufaall bouull obu"

Returns: "Not good"
" bbufob falbolfu ob u f olo ao uuallfblbauofb o lfulblu faa alfb f lol a o lfloauauuobulb o b oolu aauubollblfbaaaa b lboulaolla u off fluof bououoaolblua uaauab ulbfllobu ofo oa allfuobbu f uuuaaaloluaalo lfluoaalbbboulo flabbuubooafoflofaoulafoafblau luuba fafofflaao lauaua bf f lbualaffu"

Returns: "Not good"
"l f ba bl obolloflualb aooouaaafaluobouaoolaoubb uolflluuo aaaufloo laffbuluuu uo boaloobf ouaafluloaubfbuf aubfafbolalfaoaabbuao lofaa fab ullaa fb l lob "

Returns: "Not good"
"lllflfu ubbbubfafollo falabab bbbfubalalafubflblaloalblaluf uo fufloll oaalulb auofobfuboll oouul ofauluuboabbbbbaoal a f bfl afuoaufb bbubf lubbblf l foaulofuofuobbaboo auullafuu llalloob auubfabl bal blfloabufuabolaulbfu a ulbo l a uffobla lbufofo oloaofufllabl fboolbobbala ffu olffooo ufb bf ulloobubbffaoubboauboufu bb oauf ooobua f lallbfabff olu foffufuoaba fol alfll l f bf uaa bulla blbblallualflaaao ffalbbboofaalo auf l boafalllau u buaa ob b ffuafaooffb buauflfuuufaa fou aub fafllloo aaafuouaffbaoaublf ua laolab fflafuofo bllaoulo ablu ufbau lb boaobuuf uoobuflufbf uf bolab oab faffla uabalufulo ualoobuaolf uafb bolauauualfbo fbbo oluolblu oaaoafbfloua uallb ullb lfbaluba a obualfbu flub lu l fbfu aufluob ofaauubauu oufuul obllaoflbbof f faoabbuuaffluafbaauaoblbaa a ufa aub uualu uo ful fbllu "

Returns: "Not good"
"oflolluofllubbbuaflb afu oufaf bboo l"

Returns: "Not good"
"lu abfu f ualoafofllobu bua ofluaola oafbabaollflubfll ffffbfl f fafa flala bbufooobuf laofa bou uubb fbofaolb ufouaobbubl ubuluubl f f fuolofbof ffbufffaoouuloobobo o aul uuuboualaaaobul oou ulabffl olaooublo lo ub foaoull uobf ululo uuuoafolabb uaflauaoaaaaulllloaoaoaulff f foo aflufo ufbuoalbaubll aol olbabbf llba fffff luoooooo la b lollolobo lafaoba bflaobaoo uaabul obbaf ufofubbbufubuuf oaoal ouaa a loffla ulu llb foouboaba f ua fufu bbf ofu bff ooufuofub uaalafblbo aobuffu olo obolobloufflfb lalafuoa luoblull bo bllaaaoaffbalulabualoulaufaufoafflaufbob fob oulufuofu uuulu ulubbofllffaffau bblb uuluub blb "

Returns: "Not good"
"ooob oulblaubuf buaulffufooaaauab auubllluualob llffauaf fuf olluuo ol alobaullafl bllabloboflll oaauoobu faafauabofuoauoaaaaoffffbofulbluoa aalaauoal bff aaf fffa uff fauufb b bolal bufuf bfoaabloaob l loauaaouuul ouuboluoo a fbfbbb lbulaoboffooufobluo aluuffl loofl olabbooflaoub b oao u bol obloobfluu aa balfllfbualafabb u oalbouaafl aafffuooa"

Returns: "Not good"
" uoobboobuu oaflfbufaffa afl olufoab u afuuafllf falalofblbblf abfuolobfff abaluo loufa fbafollbbbllalffuuoba bbuaoo auloblubba loblaof abffub b o ool fboa a f foab a b fflallbbf b ullaoauabf lof ollolf fbboofubafbabufll llbfoblo aa ouoffua fo ooafalufl ool fouub oula ofoaulbo blu bouabf obolaf off af aabblf ooaboalfouul faaf ofoablluaoalo b u o ofufofuuboaaaalff oboufo bbfbfbula o lbflafafuoa ufu fauufbaab l foa uuou alofu bf lalbb alaoubb uobaa oaba lufbllfaofolfullualfabuuu f ulalooloalbaf u uaab aulfu u lulbollu uflfbb flbu lboaof a lolloboaluuuu u lf bba u f ooloalolaao o ouffaao ob olaalab b o falflaouuabablubu ufbfbbu f f u oul aloaaloafuu lu l oaauafob ffbuu obaabllouof u fbfbaol ulab f loa f abf uafua blullfo l"

Returns: "Not good"
" uofl lbb lfloouaolu fblffllf ufaf ofau obuabulbufbbbauuubauoaobaal fulaa o ofuaufaauaobaoa flaffobalaufuaou abbob bfflu uuaobuob fbaufufo oo fbuubflaa fboaoluuaf fuo buu bbu al faofbo bluubba lbbloobofaflufaffa aaa lbo lluaua obabubl u oblolualoffuaalfloalou ob ouoa oboabfaau l lu aulflbua fofbl uloaubblfub blaoafaubooooba o ffallfloaoaoooubbbalau ubabfla l uaabf bblobubff l b lu ll ofoa bbbuaufbofuouoolufoo a uo aaaff faluulfouoaa a bbaboloubufoobuau fufo oao uoblfoobloaulbao oobuulooab o f u oabfua o"

Returns: "Not good"
"bbool fflau fbobfob fbualu lau l bolouab blufl booffb buoal ooaaubbfulalofo fff bublfoofabu f uabbob o fal laau obafbfffbuaaoufblolouufoauffoo"

Returns: "Not good"
"aflfauuouaabfufoulaluff b uublb a ubooaufauuf auoobauluububul uo obbfoaooobaablobuoul lolou af aauo uaauoaauoa ll fufofbaflaoofluoouffblf oauouaulll oboolubbuaullbll bbflb lafloffafo f oaou fauaoobao alobuuo ofuolfbfobbboo ouuo obubfbboolafbfuufullufablfafoaufbo l buflaoublouu bbbfofaa u auaufuuo l foflbuafblbfbuob luula ufof f faaaooalfobu albfuubuoblboolfafu oubub lboulouabllaboblaalufufb"

Returns: "Not good"
" ufooa f laauoaobobu a ollafuf aalo fllbflbb l fouulbfuubabaflfaffa baaa ufuab lob"

Returns: "Not good"
"o allfau lblfflafloouuuobffllobbbaubluaallfl bllfuu lbfblfa lll labooabbfaf llufoua ubaobuffla ul ufblfaafbaufou llouo f lf bu bala baoub aaualuf oll allolloubalfboluf uuubao lobbloauo fbbloloofloaloffuooflolaooblulb bbabobo lfufffu oba fbafa ol buubll fouo l bbuabofaab olffaolfblofobouaoaulofbobauuuubluuoou fulf alublaabffl ulouaoffluabaf ff fbflabbf abbff ofabloufblfofa aofbbaoulllol b oaaf bfuoaoooffbfalaf affbfl lfbflbau lllfbbl u uooolobfuuflulll l bbflbaboufaaofubfluboflbf ab luou ouffolobabllalol l ffb u lfblboo lfalu faoa ualoob auluaoa o ffboallo baauuulllfbuabfauulabloo bbfuuobouuullf uuufoolla of faolobluobaoo bboufof fool afaouu f u olaf buubbu lofa o oobofulbofulaofa oafaafa ablbfab uoaulaouafulaa lfofaobaua lbll auoufflffbau fualaalolffalau b lb au f llu u lluuuafu offloll obbuu ualalolfllfofllfblu aouaafoo bbbaubfabblfboaaulaublfoafala oafau a "

Returns: "Not good"
"afbo alfao"

Returns: "Not good"
" ou b olfu ffflubaobafbaoo bufoaob l aauubooluolfbub u fl laufabablolb au aafaablf oubbouaufll fafbbofa lf u aluo auballlabfbf uo bblobboaaaoafaolofoo o aoo au fauullfbuu fbuaolluflflob uol fuuubuoao l bbluolf bulfbaouflbf"

Returns: "Not good"
" luffaulbfluuuu ulblfafbuuabfabfluafofuabfbobobffubb lauullaaloa fuoluuuaauob uolblauflfffbao uooaa aooou bfbufb a"

Returns: "Not good"
"loffub lalofbuuaulbufufboubaoboaflffa a b l u bbu aaoouubuobfalobabuubfboublfluflbba faflabbubobuolbf lububuoofboaauuafuo aobb u offbbloab alafbbalblbbafolbffu ofoaaooofolaulofb uaf lolfluofabaloububa ubluof obufobouauafolaulbauauabl ufalfb oulooabba o uubaaalb l uflolf f afouul ffb fauafu aaabobu ffaulalluaalulblou fofuflouobufb a l fbobaauuo auuaauu ouoaba bua l lbooa f o f ob ufoaaaa lbaablabuulbalo abafbaabauaauloaaaouulauabafuoaa ulfl fboufuua o blau blfoalf boffbbof fbbuofoo bbolubbffal of abbf lf fl lobuao oalafoffulofuufafo laf aolbuabfullfl aa oloula ooo aafloubbul labau bflalbo"

Returns: "Not good"
"oaa oou oobub foaulooflbabufbfbbola ba ablllf f bf oubafuffbuu ofabufffuo aaubbu ouubbbfllb abbb lfauubl ufolofufuuboofuufaaolubllbblfl bblaouualfoulfblfffuualao oblfblullffloao falafao ffubluool fuuubloua aal ooflf lbl ufbflafo bu l ol obfabubfuuuabuufol bfbbfbbofflaflouu ofufo lfflblao bfbfofaab auluof foo lfooloababllf luoufobuub laboal laloffoaulbf u of ffu fblo luu lf aoof o lfbabb ooaa f aol lof aolbubfobaf fafaafuual blbbolfl fufouabbauaobuuofuuluu luuaoubbu fuuufalaflauolofoff l ulol obfbubuualalaaoblob lu llbfoboofb ao fbla fbaulf llul aubualfbuluuaal a ulbobulblaafoubaoa f bl llfbaa ul aubf llll floalabluaboo oo lallfl a labflfoo fuo lbbubo aa o bfauaub"

Returns: "Not good"
"b lffoaob fa bbuafulubu obfuulffo luuboubo flflouufua ua uoobaubf uflolblufolluubfuffaoa lb uaf la uuol oll lfouoo f uoa bolaollfooouaauobflublf auloloaouufaafolfooaulbblluba o fbf aooaouuffllbfuffalbaabffbffffoloalofolualbloaool abuuoloubobuufafao bbllallf llbbfaobbbalooolboaoau oo fuauuobflllllua a blulololl uboulu lbbbllfaa"

Returns: "Not good"
"alaou ul aoooufb allofaufbbuuaufblbofbaufbubououlbfa bu fuaubab loblolofao b fufaflb f bf fuol l blo ffoao au a o oaafulu oblfb oola uuauuobaaofboabaou louafalfl lo f uu fu o lbfb fbou lbofalfou lfluaoulloalloa b aaublfl uf fofuuoofubof ualbalbbffl ulullo ffuuouuu ulfffaobf bluabouobfoobubauafuafalfooblal bllfo lubbflloo laoofb flfaalfff ou u bfaaloablaabb b u aufu bafuubulb baaobbfaffofu auao afoblbloaboua fl ooaaouuoblauaa llo o f f l ao uuaaalabbbuuafb ufblbofuuoa aaulb boluauuolf uao aoa obbobf uob aafbaaloubaafuafaaooubablo ollfb ualabfaofo fufbbauob u ubulu aauobfubulla a fulba buaboau bu au lao ff o ooaafl fuafaafolulofaaalubflfufu llualoaaolbboa ff au u alaufu afoa ao folubfu llfaf fooabfbouoooaf lbaallf ublab abbfo f ubaaofouooa obolaofbu o faublbubbou a obaffb ouuu obuflo baobaoafofofafaabo fubau au lubaffu fufuafofbbuaaaobouo fuulaf aoa aoauabo flublaufuuuou ffao aoo bflfbfof obofo obbo oubuofbul o a f u "

Returns: "Not good"
" lbb b lo ubol llofuffubo ffalooubfllbba oaff luuub of fb ouuauffuolo o f fbuollollaffoaubllalbl laoouub bo bufuoluoo olaffubl ouluboauua bfalbo bflfaaubulboaff oll l oallf a aub llbauo fouafaofl ofuubllauffofuafabfaulauobu baluflbf laouoaaaulfl ulu b abfoffaaollu uafbfo obl lof lub b obolfuuuuoalouob bfob llbobuloab l a ffbbauublaao ul bofuffbaal uau bb bf uf"

Returns: "Not good"
" flb aouoboulflulfaa ab u aflboubflbalff lfoaabu oao l ul loubfa u aulblufoloofalloofol o fuu lubllbfblaf lbf laobouffabo ffafobuabaoluoubaulba lub llobfllabfuu ouauluoouafabouub uu uofufofua ufolfluua lfl ofoafllaboluuualluflaf oualbofaouluuaofaafu a uuflfb ofufblubalofbolo baaual b babfoblablb uoof bubfoua fabaf f aoufalflbb bluoaloabbaob lafl lluoaa abfoouaa floufbaalofbbfoufuoulafaflf llluffluolla uffuublb lo lauauffflf flolb bfbbobaoblabufu bbboouaaafl bafoaua fffaubblballlbfl foalflbooff llllffbuba oaulaubaalffafuooaalbbbobua faffoo oabu bflouaoa ou f f lao bloul bbffol b loffuf oauuao lofofbo luo ou buobfuu buubauu ufffo bl lfuoubff oula bubu abfa"

Returns: "Not good"
"bualbao uo abf llul bauo obooalbouob bullaoba b u oouobbolboaolulllfbflfflauf ubabfbalaoffuaaalboao oollaolbo looaaubuobalaulfa lof la lalababfa ffllflloul uaffbaubalufffuuuoafooofuf bloluoulofo ol o f bulaauaffobl auoobboablofabl l lafolflo au ul obo uoblf allullufaooo fbfboabfull ubfuuffb llu uabf ooual aa a foaa ao uof ua ufaubflbfbful uua aaaffbllabobafaaalu bbaaublffaoflu uobbuua bafofuo ou obalbfoffauaobfuoubufof lfofboofau fffoalbof ffubluo bu uffu oflblfaalblab affalbobab fuob b oblbo aouob au uofuaabubfllbffaaaoulo a fbfuu flul bboabubo oauabab flbbabbuao fo aab f uabaablfubaufolblofabouauaafbfubualuauoo uuuoofbal fba ulfflaaf fluflafuaolauua ubl f l fbb boll faffuoooobffuobaa f bb bfaa bfaaubflobbbla fuo olbbuufblaabolouufulobaabfblfuu foa f bua fobffabublfubufb b bffaaoflbfb lbbuu bbu ufaa ba lo olufuu ol"

Returns: "Not good"
"lulb loff u f lffubuul fufulubllou b ofabauu aflbfobuf uf abbb luabobao afoloalfbuoaaufufbfufabfa aobbfaab lbfu l uaoll oboubalauuuooubluu oolfl o aaua b bauuubl foofboa llofbo bouauu fbbfubbaf aoobluuaflulfbblooafffbbo fll laaoalblfuolufbabl lbll lubbabo lfu uflofuab lfu oll la bfllofll fablof fa bbfafolfobafbuoofbf oaub u bfubfoalufaofboaoobab ooaoufbl u flaou alaboufoa alalfub uoolf ub u u uoaolfafaabblfou abblbaa ufubfb bfuou uboul"

Returns: "Not good"
" bbalabb aaaba bo ba bufl obu oouuaobu llbbbfo lao ufa flllbouuulfababu bb baa fbalo affluoa bbfbluulo lafuu oluuuu l ffllafaobff uobbauuboalolfoll looaoooa aaaflloollfaou baoaal foff obbooloaluuuufofbuflluaol olbaofbola aoflbob abullubuo ouo uauaaba lbbuauuaf auubaulu lalouuau uluou ualbfa b ollubolfaofflobobofabuoflbolafbubo lubablblu lubaoflobuooua oo uaa uua baa ofbo fuafuauof oaa lllfoofa lbba olaufabbollubbboaboabl ubouubu l folofalo uuuouoaaoao ub uaofl uau bubl"

Returns: "Not good"
"fllfolf lf lbooaoaluaff l ofafbf uoubu l o fllfbbb lblllulabbf oufo laua aluooau o f a f baouaaoo ouauuofu uboa lobllb floulbuuu ffb ooalafbuuu o obalafbffalo lulffaa lul bl uffufllu l oob lafaafuufu ubuo o uoofb uflubllouu bluo u fu l bfubbu lffauflbbfbfofl f lufboou a b aol baabufaoaboa oulouflablfaal fba aoolflublbo aauaal f blbu a b lbafabaollbfbubaaaauloo l lba ablbboaofolollobufoo ooufulfaboblo lb uo ofbalbaubbbuoufaafufauo u buuouuo ubuoaauf alba ubfl loobb la u abflul bloolbluu ffa a aoafuufbo ffoll"

Returns: "Not good"
"uobalouaolflfbbfuuu ofo auabababoaulbauo blulau aolul blbauoououfuoaaf bu fbu b fb a ooulfoauolfulaffbb uala oofuuuffoaaafbu fulbuuaoaaufbfffalbaf loff faaouu o bouofufa fuflo f"

Returns: "Not good"
"ollballfalluobloaaloauflb bu bbflol ba aofoaallaul fuooab a u olullbfbaoufufu aaffua fob"

Returns: "Not good"
"buffalo buffalo "

Returns: "Not good"
"bububub"

Returns: "Not good"
"b"

Returns: "Not good"
"bb"

Returns: "Not good"
"buffaloabuffaloabuffalo"

Returns: "Not good"
"buffaloabuffalo"

Returns: "Not good"
" buffalo"

Returns: "Not good"
"buffalo"

Returns: "Good"
"buffaloxbuffalo"

Returns: "Not good"
"buffaloo"

Returns: "Not good"
"buffaloxbuffaloxbuffalo"

Returns: "Not good"
"buffalo buffalo buffalo "

Returns: "Not good"
"abcdef abcdef abcdef"

Returns: "Not good"
"buffalo buffalo"

Returns: "Not good"
"abcd"

Returns: "Not good"
" buffalo buffalo"

Returns: "Not good"
"b buffalo"

Returns: "Not good"
"buffalobbuffalo"

Returns: "Not good"
"buffalo a"

Returns: "Not good"
"buffalo muffalo"

Returns: "Not good"
"buffalob"

Returns: "Not good"

Statistics

Problem Statement for "BuffaloBuffalo"

Problem Statement

Definition

Constraints

Examples