-ic b-u bbb bbc bbi bbk bbs bbt bbu bcb bcc bci bck bcs bct bcu bi- bib bic bii bik bis bit biu bkb bkc bkk bks bkt bsb bsc bsi bsk bss bst bsu btb btc bti btk bts btt btu bub buc bui buk bus but buu c-- cbb cbc cbi cbk cbs cbt cbu ccb ccc cci cck ccs cct ccu ci- cib cic cii cik cis cit ciu ckb ckc cki cks ckt csb csc csi csk css cst csu ctb ctc cti ctk cts ctt ctu cub cuc cui cuk cus cut cuu ibb ibc ibi ibk ibs ibt ibu icb icc ici ick ics ict icu iib iic iii iis iit iiu ikb ikc iki ikk iks ikt iku is- isb isc isi isk iss ist isu itb itc iti itk its itt itu iu- iub iuc iui ius iut k-t kbb kbc kbi kbk kbs kbu kcb kcc kci kck kcs kct kcu kib kic kii kik kis kit kiu kkb kkc kki kkk kks kkt kku ksb ksc ksi ksk kss kst ksu ktb ktc ktk kts ktt ktu kub kuc kui kuk kus kut kuu sbb sbc sbi sbk sbs sbt sbu scb scc sci sck scs sct scu sib sic sii sik sis sit siu sk- skb skc ski skk sks skt sku ss- ssb ssc ssi ssk sss sst ssu stb stc sti stk sts stt stu sub suc sui suk sus sut suu tbb tbc tbi tbk tbs tbt tbu tcb tcc tci tck tcs tct tcu tib tic tii tik tis tit tiu tkb tkc tkk tks tkt tsb tsc tsi tsk tss tst tsu ttb ttc tti ttk tts ttt ttu tub tuc tui tuk tus tut tuu ubb ubc ubi ubk ubs ubt ubu ucb ucc uci uck ucs uct ucu uib uic uii uis uit uiu ukb ukc uki ukk uku usb usc usi usk uss ust usu utb utc uti utk uts utt utu uuc uus uut uuu

bbbb bbbs bbci bcbc bcbs bccc bcci bccs bcis bcit bcsc bcss bctc bcts bcuc bibb bibi bibs bicc bici bick bics biis biku bis- bisc bisk biss bist bisu bitc bits bitt bitu bsci bscs bsic bskt bssc bsts btcc btcs btss bttb btus bubb bubi bubs bubu bucc buci buck bucs bucu buic buik buis buit buiu buki bukk buku busc busi busk buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcs cbct cbcu cbit cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccs cccu ccic ccii ccis ccsi ccss ccst cctb cctc cctt ccuc ccus ccut cibc cibi cicc cici cics cict cicu ciii ciis ciit cis- cisc cisk ciss cist citb citi cits citt citu ciuc cius ckbc ckbi ckck ckcs cksb ckst cktb ckts cscb cscc csci cscs csib csik csis csit csks cstc csts csus ctbi ctbs ctic ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cuck cui- cuis cuit cuk- cusb cusk cuss cust cusu cut- cutc cuts cutt ibcs ibis ibss ibtb ibtc ibts ibus icbc icbs iccb iccc icci iccs icct iccu icis icks icsb icsc icsi icss icst icts icub icus iiii iiis iiit iisc iisi iist iisu iitt iiuc ikki iksu isbt iscc isci iscs isct iscu isic isis isit isku issc issi isss issu istc isti ists isus itbs itcs itic itis itsi itsu iucc iuiu iuss iust k-ci kbbb kbbc kbbi kbbk kbbs kbbt kbbu kbcb kbci kbck kbcs kbct kbcu kbib kbic kbik kbis kbit kbiu kbkb kbkk kbsb kbsi kbsk kbss kbst kbsu kbtb kbtc kbtk kbts kbtt kbub kbuc kbuk kbus kbut kbuu kcbc kcbi kcbk kcbs kcbu kccb kccc kcci kcck kcct kccu kcic kcii kcis kcit kciu kckc kckk kcsb kcsc kcsi kcss kcst kcsu kctb kctc kcti kctu kcub kcui kcuk kibb kibc kibi kibs kibt kibu kicb kicc kick kics kict kiic kiii kiik kiis kiit kiiu kikc kiki kikk kikt kiku kisc kisi kisk kiss kist kisu kitc kiti kits kitt kitu kiuu kkbb kkbi kkbs kkbt kkcb kkci kkck kkcs kkct kkic kkik kkit kkkk kksi kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu ksbc ksbi ksbs kscb ksci ksck kscs kscu ksib ksii ksik ksis ksit kskb kskk ksks ksku kssi ksss ksst kssu kstb kstc ksti kstk ksts kstt kstu ksub ksui ksut ksuu ktbb ktbc ktbt ktbu ktcc ktck ktcs ktib ktic ktik ktis ktkb ktkc ktkk ktks ktkt ktku ktsc ktst ktsu kttc ktti kttk ktts kttt kttu ktub ktuc ktui kubb kubc kubs kubu kucb kucc kuci kuic kuik kuki kukk kuks kuku kusb kusc kust kusu kuti kuts kutt kutu kuub kuuk kuuu s-ib s-ic s-ii sbbs sbcc sbcs sbct sbic sbsi sbst sbtc sbtk sbus scbi sccc sccs scct sci- scic scis scit sck- scsc scsi scst scsu sctc scts scub scut sibc sibi sibs sibu sicc sici sick sics sicu siik siit siki siks siku sisc sisi sisk siss sist sisu sit- sitc siti sits sitt situ siui sius siut skic skik skis skit skiu skss skui skut sscc ssci sscs ssis ssit sssb sssc sssi ssss sstb sstc ssts stbc stbs stcc stcs stcu stib stic stik stis stit stks stsi stss sttc stub stuc stuk stus stut sub- subb subi subs suc- succ suci suck sucs suis suit suki suks suku sus- susi susk suss sust susu suti sutu suus tbbs tbcb tbcc tbit tbst tcbs tccc tccu tctc tcts tibi tibs tibu ticc tick tics tiit tiiu tiki tiku tisb tisi tiss tist titc titi tits titt titu tkts tsbc tscc tsis tsks tssi tsst tstc tsts tsui ttbb ttss tttt tubb tubs tubu tucc tuck tuik tuis tuit tuiu tuks tusc tusi tusk tuss tust tuti tuts tutt tutu ubbi ubic ubii ubik ubis ubit ucbc ucci ucsb ucsc ucst ucsu ucut uist uits ukcc uksc us-k usbc usbs uscc uscs usis ussb ussc usss usst ussu ustb ustc usti usts usui usus