-er -ey c-- ccc cce ccm ccr cct ce- cec cee cem cer cet cey cmc cme cmm cmr cmt cmy crc cre crm crr crt cry ctc cte ctm ctr ctt cty cyc cye cym cyr cyt ec- ecc ece ecm ecr ect eec eee eem eer eet eey em- emc eme emm emr emt erc ere erm err ert ery etc ete etm etr ett ety eyc eye eym eyr eyt m-r mc- mcc mce mcm mcr mct mec mee mem mer met mey mmc mme mmm mmr mmt mrc mre mrm mrr mrt mry mtc mte mtm mtr mtt my- myc mye mym myr myt rcc rce rcm rcr rct re- rec ree rem rer ret rey rmc rme rmm rmr rmt rrc rrm rrr rrt rtc rte rtm rtr rtt rty ry- ryc rye rym ryr ryy tcc tce tcm tcr tct te- tec tee tem ter tet tey tmc tme tmm tmr tmt tmy trc tre trm trr trt try ttc tte ttm ttr ttt tty tyc tye tym tyr tyt ycc yce ycy yec yee yem yer yet yey ymc yme ymm ymt yrc yre yrt ytc yte ytm ytr ytt yyc yye yyt yyy