bbbb bbcm bcbc bccc bccm bcuc bmoc bobb bobo bobu bock bocm boco bocu boko boku bomb bomu boob booc book boom bouk boum bubb bubo bubu bucc buck buco bucu bukk buko buku bum- bumb c-bo cbbc cbcc cbcm cbcu cbkm cbko ccbc cccb cccc cccm cccu cckm ccmb ccmc ccmm ccob ccoc ccom ccuc ckbc ckck ckcm ckco ckmo ckob ckoc ckom ckoo cmbc cmcc cmmb cmmc cmoc cobb cobo cobu cock coco cocu cok- coko com- comb comc comm como comu coob cook coom coub couk cub- cubb cucc cuck cucm cuk- cum- kbbb kbbc kbbk kbbm kbbo kbbu kbcb kbck kbco kbcu kbkb kbkk kbko kbmb kbmc kbmo kbob kboc kbok kboo kbub kbuc kbuk kbuu kcbc kcbk kcbu kccb kccc kcck kccu kckc kckk kckm kcko kcmb kcmc kcmk kcmm kcmo kcob kcom kcou kcub kcuk kkbb kkbo kkcb kkck kkcm kkco kkkk kkmc kkmk kkmo kkob kkoo kkuu kmbc kmcb kmcc kmcm kmco kmcu kmkk kmko kmmk kmmm kmmo kmob kmoc kmok kmom kmou kmuc kobb kobc kobk kobo kobu kocb kock kocm kokb kokc kokk koko koku komb komc komo koob kooc kook kooo koou koub koum kouu kubb kubc kubo kubu kucb kucc kuco kukk kuku kumm kumo kumu kuok kuoo kuub kuuk kuuu mbou mcbc mccc mckk mcmc mmcc mmcm mmmc mmmm mobb mobo mock moco moko momo momu moob mooc mook mouk mubo muc- mucc muck mucu muko mumm mumo mumu obbo obkb obok ocbc occc ocom ocum okcu okko okmo okok okom ombo ombu omo- omoo omuo ooku oooo oucc ouu- ubbo uboc ucbc ucmc ucom ukcc ukko ukok ukum umb- umbo ummo umok uocc uomo uuoc uuuu