bbbb bbch bcbc bccc bcvo bhcc bobb bobo boch bock boco boho boko boob booc booh book bovo c-bo cbbc cbcc cbko cbvb ccbc cccb cccc cccv ccob ccoc ccvo chch chkb choc choh chok choo chov chvo ckbc ckch ckck ckco ckcv ckhv ckob ckoc ckoo ckvo cobb cobh cobo coch cock coco coho cok- coko coob cooh cook covo cvcc hboc hcbc hccb hccc hcch hhhh hkcc hobo hoch hock hoho hoko hook hovk hvcc kbbb kbbc kbbk kbbo kbcb kbch kbck kbco kbhb kbhc kbhh kbkb kbkk kbko kbkv kbob kboc kbok kboo kbov kbvb kbvc kbvo kcbc kcbk kccb kccc kcck kccv kchh kchk kcho kckc kckk kcko kckv kcob kcoh kcvh kcvk kcvo kcvv khbc khcb khcc khch khck khcv khhk khho khkk khkv khob khoc khok khvh kkbb kkbo kkcb kkch kkck kkco kkhb kkhh kkhk kkkk kkob kkoh kkoo kkov kkvv kobb kobc kobk kobo kocb koch kock kohh koho kokb kokc kokh kokk koko koob kooc kook kooo koov kovc kovk kovo kvbc kvcb kvcc kvch kvck kvco kvcv kvob kvoc kvoh kvok kvoo kvov kvvv obbo obkb obok ocbc occc ohcc ohho ohob ohoh ohok okko okok ooho oooh oooo ovo- ovoo vbcc vhhh voho vooc vovk vvob vvvv