bbb bbc bbk bbo bbr bbs bby bcb bcc bck bco bcr bcs bcy bcz bkb bkc bkk bko bkr bks bob boc bok boo bor bos boy boz brb brk bro brr brs bry brz bsb bsc bsk bso bsr bss bsy by- byc byk byo byr bys byz bzo bzr bzs bzz c-- cbb cbc cbk cbo cbr cbs cby cbz ccb ccc cck cco ccr ccs ccz ckb ckc cko cks cky co- cob coc cok coo cor cos coy coz crb crc crk cro crr crs cry crz csb csc csk cso csr css csy csz cyb cyc cyk cyo cyr cys cz- czc czk czo k-z kbb kbc kbk kbo kbr kbs kbz kcb kcc kck kcr kcs kkb kkc kkk kkr kks kky kob koc kok koo kor kos koy koz krc krk kro krr krs kry ksb ksc ksk kso ksr kss kyc kyo kyr kys kyz kzo kzy ob- obb obc obk obo obr obs oby oc- ocb occ ock oco ocr ocs ocz okb okc okk oko okr oks oo- oob ooc ook ooo oor oos or- orb orc ork oro orr ors ory orz os- osb osc osk oso osr oss oyo oys ozo ozs ozz rbb rbc rbk rbo rbr rbs rcb rcc rco rcr rcs rkb rkc rkk rko rks rky rkz rob roc rok roo ror ros roy roz rrb rrc rrk rrr rrs rsb rsc rsk rso rsr rss ry- ryc ryk ryo ryr rys ryy ryz rzb rzo rzy sbb sbc sbk sbo sbr sbs sby scb scc sck sco scr scs sk- skb skc skk sko skr sks sky sob soc sok soo sor sos soy soz sr- srb src srk sro srr srs sry ss- ssb ssc ssk sso ssr sss ssz sy- syb syc syk syr sys szr ybc ybr ybs yby ybz ycc yco ycs ycy ykk yob yoc yok yoo yor yos yoy yrc yro yrs ysb ysc ysk yso ysr yss ysy ysz yyb yyc yys yyy yyz yzb yzr yzy zbb zbc zbr zbs zby zco zcs zks zo- zob zoc zok zoo zor zos zro zrs zsz zzr zzs zzy zzz

bbbb bbbs bboy bbrc bbyo bcbc bcbs bccc bccs bcor bcos bcoz bcrs bcsc bcss bkcy bkry bobb bobo bobs boby bock boco bocs boko boks boob booc book boor boos booz bor- bork boro borr bors bory borz bosc bosk boso boss boyo boys boyz bozo brcb brkb brob broc brok broo bror bros broz brrr brrs brsb brsr bry- bryk bryo bscs bsos bssc byck byob byoc byos byrk bysb byso byss bysy bzrk bzyb bzzz c-bo cbbc cbbs cbcc cbcr cbcs cbko cbkr cbry cbsc ccbc cccb cccc cccs ccob ccoc ccrc ccrs ccss ckbc ckck ckco ckcs ckcy ckob ckoc ckoo ckor ckos ckoy ckrc ckry cksb ckso cobb cobo cobs coby cock coco cok- coko coky coob cook coos cor- corb corc cork coro corr cors cory cosc coso coss cosy coyo coyr coys cozy cozz crbc crcc crcr crcz crkc crob croc crok croo cror croy croz crss cry- cryb cryo crys cryz cscb cscc csco cscr cscs csks csob csor csos csrc csrs cssr csys cybb cybc cybo cyc- cycb cycc cycs cyrk cyrs cyy- cyyc czyz k-os kbbb kbbc kbbk kbbo kbbr kbbs kbbz kbcb kbck kbco kbcr kbcs kbcy kbcz kbkb kbkk kbko kbkr kbky kbkz kbob kboc kbok kboo kbos kboz kbrb kbrc kbrk kbro kbry kbrz kbsb kbsk kbso kbsr kbss kbsy kbsz kbyb kbyo kbyr kbys kbyz kbzc kbzo kbzs kbzy kbzz kcbc kcbk kcbr kcbs kccb kccc kcck kccr kccy kckc kckk kcko kckr kcky kckz kcob kcor kcos kcoz kcrc kcro kcrr kcrs kcry kcrz kcsb kcsc kcsr kcss kcsy kcyk kcys kcyy kcyz kczo kczz kkbb kkbo kkbr kkbs kkbz kkcb kkck kkco kkcr kkcs kkcy kkkk kkob kkoo kkor kkoy kkoz kkrb kkrc kkrk kkro kkrr kkrs kkrz kksr kkss kkyc kkys kkyy kkyz kkzy kkzz kobb kobc kobk kobo kobr kobs koby kocb kock kocs kokb kokc kokk koko kokr koks koky kokz koob kooc kook kooo koor koos kooz korb korc kork koro korr kors kos- kosb kosc koso kosr koss kosy kosz koyo koyy kozb kozk kozo kozr kozy krbb krbk krbr krbz krcb krcc krco krcs krkc krkk krko krkr krks krky krkz krob kroc krok kroo kror kros kroy kroz krrb krrc krrk krro krrr krrs krry krrz krsc krsk krsr krss krsy kryk kryo kryy krzk krzr krzs krzy krzz ksbc ksbr ksbs ksby ksbz kscb ksck ksco kscr kscs kscy kskb kskk ksko kskr ksks ksky kskz ksob ksoc ksok ksoo ksor ksos ksrb ksro ksrr ksrs ksry ksrz ksso kssr ksss kssz ksyc ksyr ksyy kszr kybb kybc kybo kybr kyby kycc kyck kycr kycs kykc kykk kykr kyks kyky kykz kyok kyoo kyor kyos kyoy kyrc kyrk kyro kyrs kysc kysk kysr kyyk kyyo kyys kyyy kyyz kyzk kyzs kyzz kzbb kzbk kzbr kzbs kzbz kzcr kzkr kzks kzky kzkz kzoo kzor kzoy kzoz kzrb kzrc kzrk kzro kzrr kzrs kzrz kzsb kzsc kzyr kzzb kzzk kzzo kzzr kzzs kzzy kzzz obbo obby obkb obok obor obos oboy obro obsr obss ocbc occc ocks ocos ocro ocrr ocrs ocys okby okko okok okor okro okso okyo ooby oocr ooky oooo ooos oory oozy orbb orbo orbs orby orco orcs orko oro- orok oror oros oroy oroz orro orrs orry orsk orso orsy orys orzk orzo osby oscc osco osoo osor osos osro ossb osso ossy oyss ozzy rbbb rbbr rbbs rbss rcbc rcbo rccb rccc rccs rcos rcsc rcss rcyc rkos rkss rob- robb robo robs roby rocc rock roco rocs rokk roko rokr roks roky roob rook roor roos rooz rorc rork roro rory rosc roso ross rosy roys rozz rrrr rscc rscs rscy rsos ryck ryob rysy s-os sbbs sbcc sbcs sbor sbrk sccc sccs sccy sck- scob scok scoo scor scr- scrc scrs scry scsc scso scsr skor