-ey c-- ccc cce ccm cco ccs ce- cec cee cem ceo ces cey cmc cme cmm cmo cms cmy co- coc coe com coo cos coy csc cse csm cso css csy cyc cye cym cyo cys ec- ecc ece ecm eco ecs eec eee eem eeo ees eey em- emc eme emm emo ems eo- eoc eoe eom eoo eos es- esc ese esm eso ess esy eyc eye eym eyo eys m-o mc- mcc mce mcm mco mcs mec mee mem meo mes mey mmc mme mmm mmo mms moc moe mom moo mos moy msc mse msm mso mss msy my- myc mye mym myo mys oc- occ ocm oco ocs oec oee oem oeo oes oey om- omc ome omm omo oms omy oo- ooc oom ooo oos os- osc ose osm oso oss oye oyo oys scc sce scm sco scs se- sec see sem seo ses sey smc sme smm smo sms smy soc soe som soo sos soy ss- ssc sse ssm sso sss sy- syc sye sym sys ycc yce yco ycs ycy yec yee yem yeo yes yey ymc yme ymm ymo yms yoc yoe yom yoo yos yoy ysc yse ysm yso yss ysy yyc yye yys yyy