bbbb bbcm bbdd bbdo bcbc bccc bccm bcuc bdbc bddc bmdb bmoc bobb bobo bobu bocm boco bocu bodb bodo bodu bomb bomu boob booc bood boom boud boum bubb bubo bubu bucc buco bucu budb budd budo budu bum- bumb c-bo c-cd cbbc cbcc cbcm cbcu cbdb cbdc cbdo ccbc cccb cccc cccm cccu ccdc ccdm ccmb ccmc ccmd ccmm ccob ccoc ccod ccom ccuc cddb cdom cmbc cmcc cmdb cmmb cmmc cmoc cobb cobo cobu coco cocu codd com- comb comc comd comm como comu coob cood coom coub coud cub- cubb cucc cucm cum- d-bo dbcc dcbc dccb dccc dccu dcdb dcmu dcom dddd ddoc ddub dmcc dmcm dmdc dobb dobu doco docu dod- dodd dodo domb domm domo doob dood doom doub douc doud doum dub- dubb dubc dubu duco dudd dudo dudu dumb dumm duo- mbdb mbou mcbc mccc mccd mcdc mcdd mcdo mcmc mdcc mddm mdmc mdoc mdud mmcc mmcd mmcm mmdb mmdc mmmc mmmd mmmm mmod mobb mobo moco modd modo modu momo momu moob mooc mood moud mubo muc- mucc mucu mudd mudu mumm mumo mumu obbo ocbc occc ocom ocum odbo oddd odom odoo odou odum ombo ombu omdb omo- omoo omuo oooo oucc oudc ouu- ubbo uboc ubod ubud ucbc ucdc ucdd ucmc ucom udbc udmc udoo umb- umbo ummo uocc uomo uuoc uuuu