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bbbb bbbs bbci bbeb bcbc bcbs bccc bcci bccs bcec bces bcie bcis bcsc bcss bcuc bebb bebe bebi beci beck becs becu beeb beek bees beic beik beis beke beki beks bes- bese besk bess beuk bibb bibe bibi bibs bicc bice bici bick bics bieb bies bieu biis bike biku bis- bisc bise bisk biss bisu bsci bscs bseb bsec bsee bses bsic bssc bsse bubb bube bubi bubs bubu bucc buce buci buck bucs bucu bueu buic buie buik buis buiu buke buki bukk buku busc buse busi busk buss busu buus cbbc cbbs cbcc cbce cbcs cbcu cbec cbee cbsc cbse cbsi cbus ccbc cccb cccc ccci cccs cccu ccee ccic ccii ccis ccsi ccss ccuc ccus cebs cebu cec- cece ceci cecs ceeb ceec cees ceke cesc cese cesi cess ceui cibc cibe cibi cicc cici cics cicu ciee cies ciii ciis cis- cisc cise cisk ciss ciuc cius ckbc ckbe ckbi ckck ckcs cksb cscb cscc csce csci cscs csec csee csib csik csis csks csse csus cub- cubb cube cubi cubs cucc cuce cuci cuck cuek cues cui- cuis cuk- cuke cusb cusk cuss cusu ebbc ebbs ebcc ebes ebic ebis ebus ecbc ecbe eccb eccc ecce ecci eces ecib ecis ecks ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eese eesi eesk eick eics eiec eiei eies eike eiki eiks eise eisk eiss ekeb ekek ekes ekis ekki eksi esbs escb esce esci escs escu esee esek eses esie esik esis eske esks esku esse essi essu esui esus eubc eubi euse i-be ibcs ibec ibes ibie ibis ibss ibus icbc icbs iccb iccc icci iccs iccu icec icee ices icis icke icks icsb icsc icse icsi icss icub icue icus iecc ieie iesc iesi iesu iies iiie iiii iiis iisc iisi iisu iiuc ikee ikes ikki iksu ikue isbe iscc isci iscs iscu iseb isec isee ises isic isie isis isku issc isse issi isss issu isus iucc iuce iuiu iuse iuss k-ci kbbb kbbc kbbe kbbi kbbk kbbs kbbu kbcb kbce kbci kbck kbcs kbcu kbeb kbec kbee kbek kbes kbib kbic kbie kbik kbis kbiu kbkb kbkk kbsb kbsi kbsk kbss kbsu kbub kbuc kbue kbuk kbus kbuu kcbc kcbi kcbk kcbs kcbu kccb kccc kcci kcck kccu kceb kcec kcee kcei kceu kcic kcie kcii kcis kciu kckc kckk kcsb kcsc kcse kcsi kcss kcsu kcub kcue kcui kcuk kebb kebc kebe kebi kebu keck keek kees keib keii keik keis kekb kekc keke keki keks keku kesb kesc kesi kesk kess keus kibb kibc kibe kibi kibs kibu kicb kicc kice kick kics kies kieu kiic kiii kiik kiis kiiu kikc kiki kikk kiku kisc kise kisi kisk kiss kisu kiuu kkbb kkbe kkbi kkbs kkcb kkci kkck kkcs kkic kkik kkkk kkse kksi kkss kksu kkus kkuu ksbc ksbi ksbs kscb ksce ksci ksck kscs kscu ksec ksee ksei ksek ksib ksii ksik ksis kskb kske kskk ksks ksku ksse kssi ksss kssu ksub ksue ksui ksuu kubb kubc kube kubs kubu kucb kucc kuce kuci kuei kuek kues kueu kuic kuie kuik kuke kuki kukk kuks kuku kusb kusc kusu kuub kuuk kuuu s-ib s-ic s-ii sbbs sbcc sbcs sbic sbse sbsi sbus scbi sccc scce sccs scec scee sci- scic scie scis sck- scsc scsi scsu scub se-c se-e se-i se-k se-s se-u sebe sebi sebs sec- secc sece seck secs secu seeb seec seek sees seeu seie seii seik seis seiu seke seki sekk seku sesc sese sesi sess seui sibc sibe sibi sibs sibu sicc sice sici sick sics sicu siec siek sies siik sike siki siks siku sisc sise sisi sisk siss sisu siue siui sius skee skei skes skic skie skik skis skiu skss skue skui sscc ssce ssci sscs ssec ssee sses ssis sssb sssc sssi ssss sub- subb subi subs suc- succ suci suck sucs suee sues sueu suie suis suke suki suks suku sus- suse susi susk suss