bbbb bbcm bcbc bccc bccm bctc bcuc bmoc bmtc bobb bobo bobu bocm boco bocu bomb bomt bomu boob booc boom boot botb boto bott boum bout btcc btob bttb bubb bubo bubu bucc buco bucu bum- bumb but- buto butt c-bo cbbc cbcc cbcm cbct cbcu cbot cbtc ccbc cccb cccc cccm cccu ccmb ccmc ccmm ccob ccoc ccom cctb cctc cctt ccuc ccut cmbc cmcc cmmb cmmc cmoc cmot cmtc cmtu cobb cobo cobu coco coct cocu com- comb comc comm como comu coob coom coot cotb cotc coto cott cotu coub cout ctmo ctot cub- cubb cucc cucm cum- cumt cut- cutc cuto cutt mbou mcbc mccc mcmc mcmt mcot mctc mctu mmcc mmcm mmct mmmc mmmm mobb mobo moco momo momu moob mooc moot motb motm moto mott motu mout mtbc mtbo mtom mtuc mubo muc- mucc mucu mumm mumo mumu muto mutt mutu muut obbo obot ocbc occc occt ocom oct- octo ocum ombo ombu omo- omoo omuo oooo ootb oto- otoo otto ottu oucc out- outb outo ouu- t-mo tbcb tbcc tccc tccu tcom tctc tmbc tmcc tmcm tmou tmtt tobo tobt tobu toco tomb tomm tomo tomt toom toot totc totm toto tott toum tout ttbb tttt tubb tubo tubu tucc tuco tumb tumu tuto tutt tutu tuum tuuo ubbo uboc ucbc ucmc ucom ucut umb- umbo ummo umut uocc uomo utmb utto uttu uuoc uuuu