-er -ic c-- ccc cce cci ccm ccr ccu ccx ce- cec cee cei cem cer ceu cex ci- cic cie cii cim cir ciu cix cmc cme cmi cmm cmr cmu cmx crc cre cri crm crr cru crx cuc cue cui cum cur cuu cxc cxi cxr cxx ec- ecc ece eci ecm ecr ecu ecx eec eee eem eer eex eic eie eii eim eir eiu eix em- emc eme emi emm emr emu emx erc ere eri erm err eru eu- euc eue eui eur eux ex- exc exe exi exr exu exx icc ice ici icm icr icu ie- iec iee iei iem ier iex iic iie iii iim iir iiu iix im- imc ime imi imm imu imx ir- irc ire iri irm irr iru irx iu- iuc iue iui ium iur ixc ixe ixi m-r mc- mcc mce mci mcm mcr mcu mcx mec mee mei mem mer meu mex mi- mic mie mii mim mir miu mix mmc mme mmi mmm mmr mmu mmx mrc mre mri mrm mrr mru mrx muc mue mui mum mur muu mux mxc mxi mxr mxu rcc rce rci rcm rcr rcu rcx re- rec ree rei rem rer reu rex ric rie rii rim rir rix rmc rme rmi rmm rmr rmx rrc rri rrm rrr rru ruc rue rui rum rur ruu rux rxr 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 urx uuc uue uum uur uuu uxc uxr uxu xci xcr xcx xee xem xer xeu xex xic xie xii xiu xix xmc xmi xmm xmr xmu xmx xrc xrx xue xui xxi xxx