-er -ic c-- ccc cce cci cck ccm ccr ccu ce- cec cee cei cek cem cer ceu ci- cic cie cii cik cim cir ciu ckc cki ckm cmc cme cmi cmk cmm cmr cmu crc cre cri crk crm crr cru cuc cue cui cuk cum cur cuu ec- ecc ece eci eck ecm ecr ecu eec eee eek eem eer eic eie eii eik eim eir eiu ekc eke eki ekr eku em- emc eme emi emk emm emr emu erc ere eri erk erm err eru eu- euc eue eui eur icc ice ici ick icm icr icu ie- iec iee iei iek iem ier iic iie iii iim iir iiu ikc ike iki ikk ikr iku im- imc ime imi imm imu ir- irc ire iri irk irm irr iru iu- iuc iue iui ium iur kcc kce kci kck kcm kcr kcu ke- kec kee kei kek kem ker kic kie kii kik kim kir kiu kkc kke kki kkk kkm kkr kku kmc kme kmi kmk kmm kmu krc kri krk krr kru kuc kue kui kuk kum kur kuu m-r mc- mcc mce mci mck mcm mcr mcu mec mee mei mek mem mer meu mi- mic mie mii mik mim mir miu mkc mke mkk mkm mkr mku mmc mme mmi mmk mmm mmr mmu mrc mre mri mrk mrm mrr mru muc mue mui muk mum mur muu rcc rce rci rcm rcr rcu re- rec ree rei rek rem rer reu ric rie rii rik rim rir rkc rke rkk rkm rku rmc rme rmi rmm rmr rrc rri rrk rrm rrr rru ruc rue rui ruk rum rur ruu ucc uce uci uck ucm ucr ucu uec uee uei uem uer uic uie uii uim uir uiu ukc uke uki ukk ukr uku um- umc ume umi umm umr umu ur- urc ure uri urk urm urr uru uuc uue uum uur uuu