Statistics

Problem Statement for "Pronunciation"

Problem Statement

Peter has problems with pronouncing difficult words. In particular he can't pronounce words that contain three or more consecutive consonants (such as "street" or "first"). Furthermore he can't pronounce words that contain two or more consecutive vowels that are different (such as "goal" or "beauty"). He can pronounce words with two consecutive equal vowels though (such as "need").

Is this problem we consider the 'y' to be always a consonant, even in words like "any". So the vowels are 'a', 'e', 'i', 'o' and 'u'. You are given a String[] words. If Peter can pronounce all the words, return an empty String; otherwise return the first word he can't pronounce.

Definition

Class:
Pronunciation
Method:
canPronounce
Parameters:
String[]
Returns:
String
Method signature:
String canPronounce(String[] words)
(be sure your method is public)

Constraints

  • words contains between 1 and 50 elements, inclusive.
  • Each element of words has length between 1 and 50, inclusive.
  • Each element of words consists of upper- and lowercase letters.

Examples

  1. {"All","of","these","are","not","difficult"}

    Returns: ""

  2. {"The","word","REALLY","is","really","hard"}

    Returns: "REALLY"

  3. {"TRiCKy"}

    Returns: "TRiCKy"

    Since the 'y' is a consonant, this word contain three consecutive consonants.

  4. {"irresistable","prerogative","uttermost","importance"}

    Returns: ""

    Peter can pronounce these words.

  5. {"AA","Aa","aA","aa","EE","ee","Ee","eE","Ii","iI","II","ii","OO","oo","Oo","oO","UU","Uu","uU","uu"}

    Returns: ""

  6. {"THE","LAST","WORD","IS","YYY"}

    Returns: "YYY"

  7. {"a","Aa","aaa","AAaA","AAAAA","aAAaAA","aaaaaaaaaaaaaaaaaaaaaaAA","aaaaaaaaaaaaaaaaaarg","AAAAAAAAAAAAAAaarggghh"}

    Returns: "AAAAAAAAAAAAAAaarggghh"

  8. {"Yumm","yoop","buy","SAY","yy","TY","YAYO","alsoimpossibletopronounce","reallydifficult"}

    Returns: "alsoimpossibletopronounce"

  9. {"y"}

    Returns: ""

  10. {"qwertupasdifgihiklexcOvonmoWERTOOOPASOFGoOKLiXCooB"}

    Returns: ""

  11. {"qertupasdifgihjiklexcOvonmoWERTOOOPASOFGoOKLiXCoou"}

    Returns: "qertupasdifgihjiklexcOvonmoWERTOOOPASOFGoOKLiXCoou"

  12. {"OcTOvmoomtEEE","AjUmgoLVeeemIIIIFoobw","LAAbuuuuVfohBETeeejaaaaHv","OPenifXEEEkeXEEEzxIIqzuuuteemVIIII","xbIIIIxIIIsuQgooZOqDuSiiii","opUUUxEEEETEEEEqVuriiiibUUUXtUUU","ajQooSINPuuuunEjPaaaj","pxEEE","oBxaaaaDOOBuuugooJcoooYeMpIIIIqGiiiyUUb","hQEEEVUUUCiiPugHAASJEEEEH","eJoi"}

    Returns: "eJoi"

  13. {"sjuuuu","qxOOOdLap","UNCooNAAAACiiiTD","JFUCEtOPAAAAddiiiiLipuCYiiii","AKsOOOOsAlFoooswiiwIIItIIVoooovFEE","LxOwAANAPOOVqUUhVuuuufIY","aDMeeSCOOOOKXOOzzUUM","Vxooorpiiii","OgDaaatuuuutuuuxDuuuuGaaaamHIIBjaDII","ogAASUXOOOOYOOOOwoooJgiisUnnUfc","adjEMJIIItWUUUYCeeeeZ","eSAAANdoVqeWgUUUS","lUUUqEEEHiiibiiiicakv","aQee","erPIIIIL","RwAAAAqJagDOOOOxRAAAXICUUUUhtObCEEEV","hsUUURPIIIquuuSmoooSSAMoooowK","BSUUUWQ","YjOOOOWOpb","DCI","iDooooJoooohXOOOCAMaahhoooHeeeeCDomUUUHfEv","KgeefuuuubaaaTbUUUUt","TaaaQdoopbuPuNrAAAA","KnAAAlavOteyBeeeRiiziFpIJKooooJFaBAAAlx","yUUURBafGuuuZyuFMeeGQeejV","UTeeWJiiiiBZooooWUsGuuuGDEEEDyeeCwUUUU","IsIIVvaaakDeepOOOO","rooJmuGaZUUUykaaaP","UPGIIIIWUqFAAATtoozZUUUU","NdeeBIIIINuCpaafeeeeX","QCiiVBIIIpj","AduuuqEEEEsUUUgIIIMIIIIZItzoooo","Ree","AlziiikiiSkuuuuJpuuuuLX","AxUiUUQeeePf","TyEEqlAARObLEDxOheeesIIl","iLjAAAAMoooWBOOOw"}

    Returns: "AxUiUUQeeePf"

  14. {"AyGoocoooNXOOOOTqaNGeeeeD","oKVUUGBaaVIIIxiii","upeffUUDv","Urq","rquuuuYAAAAhaaVEEEEcm","QdOCMiizdidUUUU","AfyOOOOrooooHfeeeR","E","PIvtooojUUUUpooPeeewAAzjiipCuuFuuufooof","hLoFAHUUUsLoooBIIIfiiiicGAAAArvUUUU","uNuhEEEcYELY","CuuuuRNeeeQiiimWiiiiwUUTCIIlEEEElwEDbuu","uMiCjiiiVEEEEhIIIID","iXiicCUUUjteeelaaaJyIIQEEEzZaFkULoooo","OxVIIIInOOOwEEEEYEEBEEEEpVago","lHeeTcibeeeeZCaBiiikP","ZbaQKIPVOOOVLuuuuFiiiicKiPK","SsasAmiiiVOOOOsezJeeeejtePb","KUUUqeeCUUUUSi","wAWUUvAAApOODdaaaaTc","armEEEE","ilaaRIIIIYeeexSUUUUYOOO","IZIIIIKriyEEEEfxEEEETAARlUUUUVaqGooooxnuwB","aMJOOgV","vFiiiVUUUMhUCQ","RiiiiSiiiiZiiiiNgeeeex","hIcQuKfAAAALIIIpaaaaJOOOgoooJaaTIMKEKE","GuuuuCAAARaaaQwAAAmGuuuunAAAVquuuHJO"}

    Returns: ""

  15. {"oLAAAAndUxrICAAALoooywAAAAHcEEmQ","aJUcUqrIIIIrIIIwpEEEEGyiSiiHTuuuugm","awXOguuuwIIYsIIIIJXecgiiillaaaTPiZr","BleelaaaQdaaaahMuLPiGaayuXCeeeJuHFii","heeeSiiiiCEEEhqAARaacWoLNImQ","cIIIVVIIIXaaaazSooooxJeeeLb","zVaaaaBOOOOmaaaaQAA","HOOODVIIIkNuVnIIIISf","ihpeeeSeeeeKEcF","hhEEETkEEECooolEEExWAAFMepaTeVkee","gEEFtEEXuJV","ciiiikEhAAfG","LqOOOOjEEEEgIIILPeeegaaazL","XiiiikXuzWEEEEwJUMj","VZeeBDaamPUUmCOOVyOOOOvXAnUUhA","wqaadAAJLAAjfuuuuRKEEEEYruuuugZOp","EVjIIIIhQ"}

    Returns: ""

  16. {"kAAAAnIbooHPIIIIzx","EREEEZIIwoooChookUfTIpuuYD","izQOOOO","bOOg","AQMIIItoooofqaYlejeeeeGZEFaaaa","ytOOOhAABTUUUSOOOVVIIIIY","ACuuuuvsUSoTinDiiiq","BuNiii","ErmUUUUnEETduuuyHuuuumUUUUYipgOOs","iVJuudfURbUUUURDOOOOk","SiiiFyUUhOhFetR","XUUUUyWeevyIIII","eDAAkaaaaNWOOOPiiiNkIHr","avIIIFxiiiiXRiiiifXUUUjaaaaqz","pOOOOjOOvceeeemEEEEqIIMZiiiqfuuuuVUUUv","igEEEEJiiiiRIIIIgOOgSIIpifkfOOOy","TAAAr","SooXiqmaaaa"}

    Returns: "igEEEEJiiiiRIIIIgOOgSIIpifkfOOOy"

  17. {"aCyoooJOOOO","jOOOcmaaaayFEEEXuuXeLOOOcqEEEEmIIIvXuuuu","YavAAFIIyIITJUU","pAAAAVraavV","yLaaaaRIIhaKFAAAAwFuHxeevuupLUUUUQIIIIFboooH","epPIWNOOOOQvoHOOOOPehIIBEEEErkiiiip","OVuWuuuveeeebFIB","aTUUUROsEEEhnUKnIIIIDz","UQyoSUUNPeeeejAfWoGaaaHUBxIIIIz","ORVOVMiiikFiiyqaaaak","OvliHIIXmAcoofuuuumiiif","oPELARPAAAAKhEZAAAfkEZaaTr","PhinoodooiHdeeeetTuuyiisuFvUUUUzLeeebuuy"}

    Returns: "PhinoodooiHdeeeetTuuyiisuFvUUUUzLeeebuuy"

  18. {"OWaaJcIIcC","eNyAAAASZAYpiivneeeGAAAwDOdVUHAAA","LkiVgeejGee","UbEhQUFOXsoo","DIIIIyWoKaaaabyIIpRIICeee","ivAAATguuuuTPeenUUUUhzELZii","aHxOqIIIJiiiiKooCIju","DAAAdqeJIwIIJiiiPM","uSDOOOO","lWUUUUtuuFrobiiiHUUUCOgMUUUUPfIqAANYaaYeeeC","mXuWNuuuuBtAAAAcdUUUUDiiiiKOOmOOOyiTAAAwJIJ","LdUUpfUP","UxpAAAAh","iHhEEEEcOxwuuuuklA","bEEEkTOkQEcneeNIIdYIIIIsUUUcIIYyUUUnAAAAV","exIIIImXExoooKhiiiimAAAKUGBaaaaqiiBr","OchAfREEEEPmeee","ugUUfNiiiTooWz","ahoDeeXaaaaRKiiiVJooovaaakdErqeeeMtIIgOOOOpt","EmEEEljIIIITIIIs","aRatuuuvOOOTPeeeSfUUUcIIIIbxeeeRbeees","UGHErvEZeeeCnaawUblExwOOOLuFQoommO","upOOGMuutUmYAArjuuuDFiYeeeeznUUUf","TNUUURkatCUzgEEEEzRUUUUbsooooyM","ETII","EKRiigeeeeQeeeGxikuunoooo","sguzEEquuuVepICpIIIIwiiivzo","UQOOYUUdzAAxVuuugxaaTOYYAAARf","PooooxAAAAtOOOOMIIv"}

    Returns: ""

  19. {"ObLEMCojceeeeVkiiiiYOOVWeeeeMQOOOOkOOOmkiiq","YFAAyiGuuLAAADdArdiiiVEEEE","eCcooSCoPSooZUhMIHoooRVEEE","WxeecAAAAYrUUUUMIIImjEEbiiikn","PSeeNLaaacEEEEHzIIIIfkuu","rEEEElAAAtqaaaaWuuuxAmohb","ENRiiMuuBlOOKqEEPKooooWiiXUxeerPAtL","BViiinUUUmfEEEE","yguuuyBoooopmUUSEEGOOONT","otbeeeeTaaJmIIIhiiXBEEEExj","umhEEEPHUUUU","pGUUUcfUUSAAwOXeeeeWUvtOOOObiifYuyuDmAAAAZ","GLUUUUquupOOQXUUZeeeefovyAcDimUUTWOOOGUUUM","cpEGO","EZOOOOLGiiiiYcEjuuuuC","UVuukEEVaaMJooooyMUUUUvuuuHoo","adOOOMAAAwjIIDeeNURuuuu","hFUUUUdRoFh","Npaaah","MuuvzoPtO","yhOOmDIIIIRFOOGeeeejqEEGUxIIII","oYYeehooduuuucXooofeeeeruLuuuuF","jiiiMAMEEEEpDOOOONHEEEEtyA","HREEkDaZOJiijoooobSooz","hxeeeV","LeeeDAAxalA","EKeep","LFUUZZ","NIIII","I","lyaaaYIILmAAAxqOOOfxEEELYeegx","UvmUUUb","SrESDUUUKXIIIxAgIpLUUUfYIzzOOOXAACmokyuu","fFOzdOOBAXuuugEEyIIIRAAyuuuusqeeeeqodAAxoooopk","aGtiiizuuuubeeeVoG","mUUUUrAArGUUydOOOOweeCEEEEPNiyiigaa","nZaaaaKEEnaaaciiFyAAAASCUUUXzEdnaaaCooo","UzAAAAbduRuryaaaaXT","NuuufXutUjKIIxHuxW","aTAAAcUDUUUPbiiiicAAAFj","IyeeeexooFAAwYuuuFVOOwuuuHCOhIII","aNAAZIIIQiiiiTDIjKAAAJ","oHaCCUceeeethyootUUUFeeeNUUCJUUUvZaaaaRHeeeh"}

    Returns: "oHaCCUceeeethyootUUUFeeeNUUCJUUUvZaaaaRHeeeh"

  20. {"ekULoomOOOW","OmOOOOHKAgOOKHUUruuu","oyqAAAAxiiDSOONjoooXufAAAFiiifOtuuVHAAA","OWIIIHoooFtaMqaaaCOOQEEEduRaaaa","QuukaahLiiBGeeeeR","EkeeeerIxabvOOOOSNaaaJYiiiKhOOOObM","pjurFAbaaZaaacT","iVhiiiin","XUUUUGAhIIIsEPmooooPPAAsUFOOOO","ISJEEtiFOOOOqiiXzooomOOOfuuVKooVCeekMAAAA","OXZiiiWKEEBaaBuuuYViiii","IbuuuupquudoooogqeefOOOvVoBnaas","VUUfUUUrhIIImEvJajgOOOLaaKEE","KeeeGjEEEBtUUDUUUUmaWdaaawKaaaaVEEEHAMOOO","ESeWoooDEteeekWiKiiiWHuhvaawVIIIGhUUBF","kNUUUMUUzPUUSuuuXooMiBwoWiJtEQTaseeBR","HLe","lkEEsEEm","guuuTSoosNiiiiDIIII","WIIII","kVejiiruuuuQAAAmfAAAheeeeTXiiiiBTAAAAREEMl","duuuupuuuu","AwtOOOrduYzAAmz","xBEEEEZxEEEErx","igpeeeedM","jcuuqziiiiJHiiigveemReq","jvoooxexm","udQaVuuuuj","OHAXVoohaaaayEEEECxoVjaaaHB","IsuuBUUURwuuFuutiikPIIIIfuMzIn","aDAphEMqOOOOWIzsOOO","IGiiisoTDanPOSAAAABIIIIFLuuuT","IFOOONwuuQqEH","EFAAD","qUUUUDAAjAAAAraaaaBoomIIlnUUlgEEEEQoooG","CUUUGPAABIIIxRaaaBEJtEEJIIIwOVnOOOlmIIcr","DqaaayaBeeMoooo","ORHooofNEElYU","VxEEEWHeeb","jXEEEEZeeeeGIIJLEEEEseWUUkIIIIwII","XHeeruuHOOOOdpEENWeeqOOOOZoLAAALeePMuuuG","SeyKAAvokaaaazuuLooooPluuvbOPriii","qUUCZEJfUsoRNUUUUGZIIIqEYAAAwAAhjAAAAl","uQNaaaTaaaGUUUUzYOPOdOOOObuuuuvyOLYUUUU","gLUUUJB","THUUUUhzOOYFuRiPdOOOGNAAAGIIs","NEETSIIIIWyEQNUqEEEEYR","XPiiMaayaaagXiidViiiwUUUQiiizOOKd","uqgOdweeee","RNOOOWJooHNaYY"}

    Returns: ""

  21. {"ioLAAAMDAAhexMUUUUqaaamImCUUUF","IyREEEcrIIIIy","oRKeeeeLVooYzEEXeTvOOlAcuuuxVuugzuPziiX","VUUUUxAAAqvuuuul","balXeee","lveeeekeeeeCNaaaafuuuuWEEKAAAA","ruugCOOJWiiiDWAAnFAAGOsdIIsAAzrIIIXK","DGAAGjaaaaJRuuSz","dQEvWuPRooqpEEEj","brEQUUnoooobemluyEEEvoZKAAQTaaamisIIIkzuu","ocOOrDuRGuuuuYeeeepIzoooQCiXZAVYOOOPEGneeeesb","lVEDuuuu","FEmaaaaGerZOOOOzAsiiiiNuum","KeBiiQqEEECkooool","iVYOYrEEEE","UgnAAAsw","YaXAZUUNvIIIXAAxqiitQ","yefUtIcAAgQUUUdZEGdiiijmUU","unKaaaaTnenKUUpViigoKuuuufJOFAA","ItOOOOmP","haaaaxAAAQuumBehUUULoVfeeXuuKZ","wlaHjOOOO","iFEEEEBIIIIgCIIVEWveK","RrogcOONuuuliXaaayaYwuvEEEQUBIITsUUUU","URMuu","AdaaatIIKoooovRIIIseeeeytEEEEKDeeeH"}

    Returns: "ioLAAAMDAAhexMUUUUqaaamImCUUUF"

  22. {"eMrormaHU","epteeegkeeeesbaKooYtAAAAFoMhuuuv","EkcIKb","SlatOOmxaayrOVsiiiiYqePooooDWUUUUW","Ufaaaap","EchohBeeeepFAAXAwVuuuuwviiKaaaGLUWHoj","I","ABBiiivoooojeeeevzoooPUURQuuupkII","rofqaaVSucjuukAAWooooBoogjOOOJWUUUx","ZoovEEEkAHbewdeeeeBeeeC","kVOjEEZwIMIIIkeexooqoBnuutqePZaaaamx","ulUUPOOOOtOOOHoXayviiiiZuuuuyoonaaavUUN","YTAAAAQpiROOh","JgeestAAAAZooGIIIMRooooVvUUx","WWOOniiiZtEEEL","dUUUVNuuuZJEJaaaaP","hciiiisyEDniiiGOJdAAAAYvOTgeeeex","GWeeeeBiXUUUUvnEEEwotEEEZwOOOOSNAAAw","DQoosAAAAXAAAAPT","fRoJKEqVUtEEEJxeeeeYpAApoooksurUUUUP","piiihIIIQgedIIIZ","dPAAAAGniiiibZII"}

    Returns: ""

  23. {"RUUXwiiLuuuChaaajneeees","FiiiT","OzpiiiihSoooFjIyYIIIhzosHAmUUCfII","rihpUuUuTooooiZUUUTQeN","wEcBoooxvaaaztIII","OVIIIsvaaaaKIIIIhuuu"}

    Returns: "rihpUuUuTooooiZUUUTQeN"

  24. {"RhoBIIIIXaKUBiiisElAAAASt","OmqiDmAAAAPeeeTbeetIIIfEEEtlIlnEEEEJYEEE","tUUUUx","jrOOOOCq","INteeeeGqEEzPoooo","gAvuvaaXDU","CPoooKeCeeee","HAAtAAAARniiiiRBooWlOOOOMOOOgvAACidOOBPiiiiVK","aL","COOOOmooDWEEEEgliiixW","egIHGIIIIKGIIIIXheepAA","OMyuugBiiiirTuuuS","SEEEE","UXAAAlweesvUUUTIIIIX","IvIIIIfUUUUlAAAKOOO","MYiNIIISETOlEEEcooleeeqtOkLiii","BLAAppALsaaajbAMooSKAsz","NWOOOZEEEEvKeeSVaaKJiZawOOOGuuuRorhIIIRWaaaaLX","naaaaskIIIfrIIriipEEEEZEEnTutiiituuuuJluuuuL","TUUqoooo","kyEEEEhOd","OrIHuufIIwFuuuuGv","KohAAAHWooXAnBaaWUkIIIIMaaaaWUdWAAAAcp","erLeeYOZFIImeHaaannOO","oMOOOOSiiiikuuuuSezLaaaaPoooQqeeeXcaQIIII","oqgAAciiiYm","GiiiiQJooTIPEEEE","ABlIIIIN","AwUKAAAAkXaaaaKIIIlLeeelriiDUdUUYooooZ","AQeeeevIIITBuuuuqSoooodAAAAXhIPweeeeD","pJOOyD","beeeCvOOOjOOOOykuuuulFIBuuuuGT","DGUUUFfiinHuCUUUQEQI","upCOCKopmAAAAsOOLOOOO","OvEhnuufORfEEEESViitDeee","cNOOvoXWUMfeGduuucQUUlT","kuuukTEEFHOhSeeeYYUUVIIIIbaLFEYoWIIdHuuBO","oBNEESQEEqbOOOjeeeeylEtiikOOOPzAAAAQDIIIIr","ihOOOfadUUld","UmAGSeYhOOOO","oYIIpuuDooKbeedniiresOVbeeeeqc","XIGCAACnUUUUgHUUUUDdEEJexeGTIIIhuuuCN","XfuSuuvdOOOOyYeee","eYwEEEqLiiiToloZ","EDtIIWUvgeecbEEEP","ONQOOOOCIziiiiniiiirQeeeePs","EJYaabiiiyVIIIJgaahPuWiiWOguuuqwee","HuXiiimDIIsTEceeegMAcCIEMuuuuloooo"}

    Returns: "HuXiiimDIIsTEceeegMAcCIEMuuuuloooo"

  25. {"TzooSuubTOORbUUUvLOOOSbOOScooLD","UmKooVIIIvEEYfuuuCVUUUFeeegfIluuDtee","JsAwDAAAAREEcOrPEyAAfOfwaaaaZTISIIDoo","OZVAAAAKOOOODEE","epiiiWIIICxiiXyuuBfAkmaaaaJIIIDf","eVOOOOcPIII","odUUUJEcIIIIKBEmZaaaaHaaafcAZ","UpmUUUUYPElAAAwaaaaKOOOOnRuS","FUFaaaalPobqUqOSyighiidKaaaaFIIIIyKeeeex","CyeeKubIIIZ","XBaaQWoFeeeeW","wwiiiiDxuuuVf","gniiiTYaaBOOOOnuMuuGMAAAAFFiii","IRookNuv","oZaaaafHeeetintuuuunkOOOxUUU","tuuRMuuubwooXIIIpHiiiiWeeQQuuSeJX","OpuuuzleeeezeeeSotiibNeeeezIIIIJQuuuuS","ADEEW","wnEEKriiiirOxuuuKRooHGoowC","FUU","BaaveeZFIIIyAAAALbEEEEdosv","kEEEEHEwEykuuuhuuMuuuniiSUUUGd","zEELuruuPliiRUUTHOOh","qiiirOwRamAAVnoqEcraaamEEEl","qUUnOOswooorRaarVaadMeeeesaaadEEFDoooDcizR","LyUUUThIIIIDEEEEjMUUUcY","dPEEBs","vEEEE","ATdUnUUUUzbBBOOrIIIIqcEE","gxiiicEzR"}

    Returns: "ATdUnUUUUzbBBOOrIIIIqcEE"

  26. {"DJiiiKooCEEEkIIItDuuuD","iyfoooqMiiTleegIyUUUf","HaaBIIIILUG","layhuubiPXAdbucAGmmm"}

    Returns: "layhuubiPXAdbucAGmmm"

  27. {"Aa"}

    Returns: ""

  28. {"ae" }

    Returns: "ae"

  29. {"Aa" }

    Returns: ""

  30. {"aaeii" }

    Returns: "aaeii"

  31. {"aaAa", "aE" }

    Returns: "aE"

  32. {"need" }

    Returns: ""

  33. {"All", "of", "these", "are", "not", "difficult" }

    Returns: ""

  34. {"AE", "AeTEu" }

    Returns: "AE"

  35. {"eea" }

    Returns: "eea"

  36. {"gaAl" }

    Returns: ""

  37. {"Aal", "of", "these", "are", "not", "difficult" }

    Returns: ""

  38. {"goal" }

    Returns: "goal"

  39. {"Ea" }

    Returns: "Ea"

  40. {"AaA", "aaa" }

    Returns: ""

  41. {"aa" }

    Returns: ""

  42. {"irresistable", "preaogative", "uttermost", "importance" }

    Returns: "preaogative"

  43. {"The", "word", "REALLY", "is", "really", "hard" }

    Returns: "REALLY"

  44. {"baAd" }

    Returns: ""

  45. {"aaAa", "hIr", "aOl" }

    Returns: "aOl"

  46. {"tae" }

    Returns: "tae"

  47. {"eaAiou", "need", "STREEET" }

    Returns: "eaAiou"

  48. {"aaccce" }

    Returns: "aaccce"

  49. {"abacdd" }

    Returns: "abacdd"

  50. {"cool", "irresistable", "prerogative", "importance", "uttermost" }

    Returns: ""

  51. {"ttt" }

    Returns: "ttt"

  52. {"GrEen" }

    Returns: ""

  53. {"aaaaaaaaaa" }

    Returns: ""

  54. {"cc", "cc" }

    Returns: ""

  55. {"SSS" }

    Returns: "SSS"

  56. {"ya" }

    Returns: ""

  57. {"neEd" }

    Returns: ""

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