c-- ccc cch ccm ccr ch- chc chh chm chr chy cmc cmh cmm cmr cmy crc crh crm crr cry cyc cym cyr hcc hch hcm hcr hcy hhc hhh hhm hhr hhy hmc hmh hmm hmr hmy hr- hrc hrh hrm hrr hy- hyc hyh hym hyr hyy m-r mc- mcc mch mcm mcr mhc mhh mhm mhr mmc mmh mmm mmr mrc mrh mrm mrr mry my- myc myh mym myr rcc rch rcm rcr rh- rhc rhh rhm rhr rmc rmh rmm rmr rrc rrh rrm rrr ry- ryc rym ryr ryy ycc ych ycy yhc ymc ymm yrc yyc yyy