-er -ic c-- ccc cce cci ccm ccr ccu ce- cec cee cei cem cer ceu ci- cic cie cii cim cir ciu cmc cme cmi cmm cmr cmu crc cre cri crm crr cru cuc cue cui cum cur cuu ec- ecc ece eci ecm ecr ecu eec eee eem eer eic eie eii eim eir eiu em- emc eme emi emm emr emu erc ere eri erm err eru eu- euc eue eui eur icc ice ici icm icr icu ie- iec iee iei iem ier iic iie iii iim iir iiu im- imc ime imi imm imu ir- irc ire iri irm irr iru iu- iuc iue iui ium iur m-r mc- mcc mce mci mcm mcr mcu mec mee mei mem mer meu mi- mic mie mii mim mir miu mmc mme mmi mmm mmr mmu mrc mre mri mrm mrr mru muc mue mui mum mur muu rcc rce rci rcm rcr rcu re- rec ree rei rem rer reu ric rie rii rim rir rmc rme rmi rmm rmr rrc rri rrm rrr rru ruc rue rui rum rur ruu ucc uce uci ucm ucr ucu uec uee uei uem uer uic uie uii uim uir uiu um- umc ume umi umm umr umu ur- urc ure uri urm urr uru uuc uue uum uur uuu