-ey c-- ccc cce ccm cco ccz ce- cec cee cem ceo cey cez cmc cme cmm cmo cmy co- coc coe com coo coy coz cyc cye cym cyo cz- czc cze czm czo ec- ecc ece ecm eco eec eee eem eeo eey em- emc eme emm emo eo- eoc eoe eom eoo eyc eye eym eyo eze ezo ezz m-o mc- mcc mce mcm mco mcz mec mee mem meo mey mez mmc mme mmm mmo mmz moc moe mom moo moy moz my- myc mye mym myo mzm oc- occ ocm oco ocz oec oee oem oeo oey om- omc ome omm omo omy omz oo- ooc oom ooo oye oyo oze ozm ozo ozz ycc yce yco ycy yec yee yem yeo yey yez ymc yme ymm ymo yoc yoe yom yoo yoy yyc yye yyy yyz yzy zce zco zec zee zem zeo zez zmc zmm zo- zoc zoe zom zoo zym zzy zzz