c-- ccc cch ccm ccn cco ch- chc chh chm chn cho cmc cmh cmm cmn cmo cn- cnc cnh cnm cnn cno co- coc coh com con coo hcc hch hcm hcn hco hhc hhh hhm hhn hho hmc hmh hmm hmo hnc hnh hnn hno hoc hoh hom hon hoo m-o mc- mcc mch mcm mcn mco mhc mhh mhm mhn mho mmc mmh mmm mmn mmo mnc mnm mnn mno moc moh mom mon moo ncc nch ncm ncn nco nhc nhh nhm nhn nmc nmh nmm nmn nmo nnc nnh nnm nnn nno no- noc noh nom non noo oc- occ och ocm ocn oco ohc ohh ohm ohn oho om- omc omh omm omn omo on- onc onh onn ono oo- ooc ooh oom oon ooo