-er -ey c-- ccc cce ccm ccr ccu ce- cec cee cem cer ceu cey cmc cme cmm cmr cmu cmy crc cre crm crr cru cry cuc cue cum cur cuu cuy cyc cye cym cyr ec- ecc ece ecm ecr ecu eec eee eem eer eey em- emc eme emm emr emu erc ere erm err eru ery eu- euc eue eur eyc eye eym eyr m-r mc- mcc mce mcm mcr mcu mec mee mem mer meu mey mmc mme mmm mmr mmu mrc mre mrm mrr mru mry muc mue mum mur muu muy my- myc mye mym myr myu rcc rce rcm rcr rcu re- rec ree rem rer reu rey rmc rme rmm rmr rrc rrm rrr rru ruc rue rum rur ruu ruy ry- ryc rye rym ryr ryu ryy ucc uce ucm ucr ucu uec uee uem uer uey um- umc ume umm umr umu ur- urc ure urm urr uru ury uuc uue uum uur uuu uyc uyu ycc yce ycu ycy yec yee yem yer yey ymc yme ymm yrc yre yru yue yum yur yuu yuy yyc yye yyu yyy