-er -ic c-- ccc cce cci ccm ccr ccs ccu ce- cec cee cei cem cer ces ceu ci- cic cie cii cim cir cis ciu cmc cme cmi cmm cmr cms cmu crc cre cri crm crr crs cru csc cse csi csm csr css csu cuc cue cui cum cur cus cuu ec- ecc ece eci ecm ecr ecs ecu eec eee eem eer ees eic eie eii eim eir eis eiu em- emc eme emi emm emr ems emu erc ere eri erm err ers eru es- esc ese esi esm esr ess esu eu- euc eue eui eur eus icc ice ici icm icr ics icu ie- iec iee iei iem ier ies iic iie iii iim iir iis iiu im- imc ime imi imm ims imu ir- irc ire iri irm irr irs iru is- isc ise isi ism isr iss isu iu- iuc iue iui ium iur ius m-r mc- mcc mce mci mcm mcr mcs mcu mec mee mei mem mer mes meu mi- mic mie mii mim mir mis miu mmc mme mmi mmm mmr mms mmu mrc mre mri mrm mrr mrs mru msc mse msi msm msr mss msu muc mue mui mum mur mus muu rcc rce rci rcm rcr rcs rcu re- rec ree rei rem rer res reu ric rie rii rim rir ris rmc rme rmi rmm rmr rms rrc rri rrm rrr rrs rru rsc rse rsi rsm rsr rss rsu ruc rue rui rum rur rus ruu scc sce sci scm scr scs scu se- sec see sei sem ser ses seu sic sie sii sim sir sis siu smc sme smi smm smr sms smu sr- src sre sri srm srr srs ss- ssc sse ssi ssm ssr sss ssu suc sue sui sum sur sus suu ucc uce uci ucm ucr ucs ucu uec uee uei uem uer ues uic uie uii uim uir uis uiu um- umc ume umi umm umr ums umu ur- urc ure uri urm urr urs uru usc use usi usm usr uss usu uuc uue uum uur uus uuu