-er -ey c-- ccc cce ccm ccr ccs ce- cec cee cem cer ces cey cmc cme cmm cmr cms cmy crc cre crm crr crs cry csc cse csm csr css csy cyc cye cym cyr cys ec- ecc ece ecm ecr ecs eec eee eem eer ees eey em- emc eme emm emr ems erc ere erm err ers ery es- esc ese esm esr ess esy eyc eye eym eyr eys m-r mc- mcc mce mcm mcr mcs mec mee mem mer mes mey mmc mme mmm mmr mms mrc mre mrm mrr mrs mry msc mse msm msr mss msy my- myc mye mym myr mys rcc rce rcm rcr rcs re- rec ree rem rer res rey rmc rme rmm rmr rms rrc rrm rrr rrs rsc rse rsm rsr rss ry- ryc rye rym ryr rys ryy scc sce scm scr scs se- sec see sem ser ses sey smc sme smm smr sms smy sr- src sre srm srr srs sry ss- ssc sse ssm ssr sss sy- syc sye sym syr sys ycc yce ycs ycy yec yee yem yer yes yey ymc yme ymm yms yrc yre yrs ysc yse ysm ysr yss ysy yyc yye yys yyy