c-- ccc cch cck ccm cco ccs ch- chc chh chk chm cho chs chy ckc ckh ckm cko cks cky cmc cmh cmk cmm cmo cms cmy co- coc coh cok com coo cos coy csc csh csk csm cso css csy cyc cyk cym cyo cys hcc hch hck hcm hco hcs hcy hhc hhh hhk hhm hho hhs hhy hkh hkk hkm hko hks hmc hmh hmk hmm hmo hms hmy hoc hoh hok hom hoo hos hoy hsc hsh hsk hsm hss hsy hy- hyc hyh hym hyo hys hyy kcc kch kck kcm kcs khh khk khm kho khs kkc kkh kkk kkm kks kky kmc kmh kmk kmm kmo kms koc koh kok kom koo kos koy ksc ksh ksk ksm kso kss kyc kym kyo kys m-o mc- mcc mch mck mcm mco mcs mhc mhh mhk mhm mho mhs mkc mkh mkk mkm mko mks mky mmc mmh mmk mmm mmo mms moc moh mok mom moo mos moy msc msh msk msm mso mss msy my- myc myh myk mym myo mys oc- occ och ock ocm oco ocs ohc ohh ohm oho ohs okc okk oko oks om- omc omh omm omo oms omy oo- ooc ooh ook oom ooo oos os- osc osh osk osm oso oss oyo oys scc sch sck scm sco scs sh- shc shh shk shm sho shs shy sk- skc skh skk skm sko sks sky smc smh smk smm smo sms smy soc soh sok som soo sos soy ss- ssc ssh ssk ssm sso sss sy- syc syh syk sym sys ycc ych yco ycs ycy yhc yhs ykk ykm ymc ymm ymo yms yoc yok yom yoo yos yoy ysc ysk ysm yso yss ysy yyc yys yyy