bbbb bbbs bbeb bbrc bcbc bcbs bccc bccs bcec bcer bces bcrs bcsc bcss bebb bebe beby beck becs beeb beek beer bees beey beke beks berc bere berk berr bers bery bes- bese besk bess besy beye beyk beys bkcy bkry brcb brce breb brec bree brek brer bres brey brkb brrr brrs brsb brsr bry- brye bryk bscs bseb bsec bsee bser bses bssc bsse byce byck byer byes byke byre byrk bysb byse byss bysy cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cber cbkr cbre cbry cbsc cbse ccbc cccb cccc cccs ccee ccrc ccre ccrs ccss cebs cec- cece cecs ceeb ceec cees ceke cer- cerc cere cers cery cesc cese cesr cess ceys ckbc ckbe ckck ckcs ckcy cker ckey ckrc ckry cksb crbc crcc crce crcr cre- creb crec cree cres crkc crss cry- cryb crys cscb cscc csce cscr cscs csec csee cser csks csrc csrs csse cssr csys cybb cybc cyc- cycb cycc cycs cyke cyre cyrk cyrs cyse cyy- cyyc ebbc ebbr ebbs ebby ebcc eber ebes ecbc ecbe eccb eccc ecce eces ecks ecky ecrc ecrr ecsc ecse ecss eeby eecs eeee eees eeke eeks eerc eers eery eese eesk eesy ekeb ekek eker ekes erbb erbe ercc erce ereb erec erer eres erke erks errc erre errs erse eryc erye esbs escb esce escr escs esee esek eser eses eske esks esky esse essy eyck eyeb eyec eyer eyes eyey eyke eyre eyry eyse eyyr kbbb kbbc kbbe kbbk kbbr kbbs kbcb kbce kbck kbcr kbcs kbcy kbeb kbec kbee kbek kber kbes kbey kbkb kbkk kbkr kbky kbrb kbrc kbre kbrk kbry kbsb kbsk kbsr kbss kbsy kbyb kbyr kbys kcbc kcbk kcbr kcbs kccb kccc kcck kccr kccy kceb kcec kcee kcey kckc kckk kckr kcky kcrc kcrr kcrs kcry kcsb kcsc kcse kcsr kcss kcsy kcye kcyk kcys kcyy kebb kebc kebe kebr keck kecr keek keer kees kekb kekc keke keks ker- kerb kerc kere kerk kerr kers kesb kesc kesk kesr kess kesy keyb keye keys keyy kkbb kkbe kkbr kkbs kkcb kkck kkcr kkcs kkcy kkkk kkrb kkrc kkre kkrk kkrr kkrs kkse kksr kkss kkyc kkys kkyy krbb krbe krbk krbr krcb krcc krce krcs kreb krec kree krek kres krkc krke krkk krkr krks krky krrb krrc krre krrk krrr krrs krry krsc krse krsk krsr krss krsy krye kryk kryy ksbc ksbr ksbs ksby kscb ksce ksck kscr kscs kscy ksec ksee ksek kser ksey kskb kske kskk kskr ksks ksky ksrb ksrr ksrs ksry ksse kssr ksss ksyc ksyr ksyy kybb kybc kybe kybr kyby kycc kyck kycr kycs kyee kyes kykc kyke kykk kykr kyks kyky kyrc kyre kyrk kyrs kysc kyse kysk kysr kyyk kyys kyyy rbbb rbbr rbbs rbss rcbc rccb rccc rccs rcsc rcss rcyc rebb rebe rebk rebs recc rece reck recr recs recy reeb reek rees reke reks reky rere rers rery rese ress reye reyk reys rkss rrrr rscc rscs rscy rsee rsre rybe ryck ryeb ryes ryke rysy sbbs sbcc sbcs sber sbrk sbse sccc scce sccs sccy scec scee scer scey sck- scr- scrc scre scrs scry scsc scsr scye se-c se-e se-k se-s se-y sebe sebs seby sec- secc sece seck secr secs secy seeb seec seek seer sees seey seke sekk serb serc sere serk serr sers sery sesc sese sess seye seyk seys skee sker skes skey skss sky- skye skyr skys skyy srbc srby srcc sreb srec sres ssbr ssby sscc ssce sscs ssec ssee sses ssrc ssrs sssb sssc ssss syce syck sycr syer syes syke syre syrs syry syse syss syyk ybbs yber ybry yccc ycee ycsb yeck yeek yeer yees yeke yerb yere yerk yerr yers yery yesk yess yeye yeyr ykes ykey yksc yrke ysby ysee yser yses ysse ysyb yyyy