-ey c-- ccc cce ccm cco ccs cct ce- cec cee cem ceo ces cet cey cmc cme cmm cmo cms cmt cmy co- coc coe com coo cos cot coy csc cse csm cso css cst csy ctc cte ctm cto cts ctt cty cyc cye cym cyo cys cyt ec- ecc ece ecm eco ecs ect eec eee eem eeo ees eet eey em- emc eme emm emo ems emt eo- eoc eoe eom eoo eos eot es- esc ese esm eso ess est esy etc ete etm eto ets ett ety eyc eye eym eyo eys eyt m-o mc- mcc mce mcm mco mcs mct mec mee mem meo mes met mey mmc mme mmm mmo mms mmt moc moe mom moo mos mot moy msc mse msm mso mss mst msy mtc mte mtm mto mts mtt my- myc mye mym myo mys myt oc- occ ocm oco ocs oct oec oee oem oeo oes oet oey om- omc ome omm omo oms omt omy oo- ooc oom ooo oos oot os- osc ose osm oso oss ost ot- otc ote otm oto ots ott oye oyo oys scc sce scm sco scs sct se- sec see sem seo ses set sey smc sme smm smo sms smt smy soc soe som soo sos sot soy ss- ssc sse ssm sso sss sst stc ste stm sto sts stt sty sy- syc sye sym sys syt tcc tce tcm tco tcs tct te- tec tee tem teo tes tet tey tmc tme tmm tmo tms tmt tmy to- toc toe tom too tos tot toy tsc tse tsm tso tss tst tsy ttc tte ttm tto tts ttt tty tyc tye tym tyo tys tyt ycc yce yco ycs ycy yec yee yem yeo yes yet yey ymc yme ymm ymo yms ymt yoc yoe yom yoo yos yot yoy ysc yse ysm yso yss yst ysy ytc yte ytm yto yts ytt yyc yye yys yyt yyy