-ic c-- ccc cci cck ccm cco ci- cic cii cik cim cio ckc cki ckm cko cky cmc cmi cmk cmm cmo cmy co- coc coi cok com coo coy cyc cyk cym cyo icc ici ick icm ico icy iic iii iim iio ikc iki ikk iko im- imc imi imm imo imy io- ioc ioi iom ioo iyc iym iyo iyy kcc kci kck kcm kic kii kik kim kio kkc kki kkk kkm kky kmc kmi kmk kmm kmo koc koi kok kom koo koy kyc kym kyo m-o mc- mcc mci mck mcm mco mi- mic mii mik mim mio miy mkc mkk mkm mko mky mmc mmi mmk mmm mmo moc moi mok mom moo moy my- myc myk mym myo o-i oc- occ oci ock ocm oco oic oii oik oim oio okc oki okk oko om- omc omi omm omo omy oo- ooc ooi ook oom ooo oyi oyo ycc yci yco ycy yii yim yio yki ykk ykm ymc ymi ymm ymo yoc yoi yok yom yoo yoy yyc yyy