c-- ccc cch cck ccm cco ch- chc chh chk chm cho ckc ckh ckm cko cmc cmh cmk cmm cmo co- coc coh cok com coo hcc hch hck hcm hco hhc hhh hhk hhm hho hkh hkk hkm hko hmc hmh hmk hmm hmo hoc hoh hok hom hoo kcc kch kck kcm khh khk khm kho kkc kkh kkk kkm kmc kmh kmk kmm kmo koc koh kok kom koo m-o mc- mcc mch mck mcm mco mhc mhh mhk mhm mho mkc mkh mkk mkm mko mmc mmh mmk mmm mmo moc moh mok mom moo oc- occ och ock ocm oco ohc ohh ohm oho okc okk oko om- omc omh omm omo oo- ooc ooh ook oom ooo