c-- ccc cch ccm cco ccr ch- chc chh chm cho chr chy cmc cmh cmm cmo cmr cmy co- coc coh com coo cor coy crc crh crm cro crr cry cyc cym cyo cyr hcc hch hcm hco hcr hcy hhc hhh hhm hho hhr hhy hmc hmh hmm hmo hmr hmy hoc hoh hom hoo hor hoy hr- hrc hrh hrm hro hrr hy- hyc hyh hym hyo hyr hyy m-o m-r mc- mcc mch mcm mco mcr mhc mhh mhm mho mhr mmc mmh mmm mmo mmr moc moh mom moo mor moy mrc mrh mrm mro mrr mry my- myc myh mym myo myr oc- occ och ocm oco ocr ohc ohh ohm oho ohr om- omc omh omm omo omr omy oo- ooc ooh oom ooo oor or- orc orh orm oro orr ory oyo rcc rch rcm rco rcr rh- rhc rhh rhm rho rhr rmc rmh rmm rmo rmr roc roh rom roo ror roy rrc rrh rrm rrr ry- ryc rym ryo ryr ryy ycc ych yco ycy yhc ymc ymm ymo yoc yom yoo yor yoy yrc yro yyc yyy