-er -ic c-- ccc cce cci ccm cco ccr ccu ce- cec cee cei cem ceo cer ceu ci- cic cie cii cim cio cir ciu cmc cme cmi cmm cmo cmr cmu co- coc coe coi com coo cor cou crc cre cri crm cro crr cru cuc cue cui cum cuo cur cuu ec- ecc ece eci ecm eco ecr ecu eec eee eem eeo eer eic eie eii eim eio eir eiu em- emc eme emi emm emo emr emu eo- eoc eoe eoi eom eoo eor eou erc ere eri erm ero err eru eu- euc eue eui eur icc ice ici icm ico icr icu ie- iec iee iei iem ier iic iie iii iim iio iir iiu im- imc ime imi imm imo imu io- ioc ioe ioi iom ioo ior iou ir- irc ire iri irm iro irr iru iu- iuc iue iui ium iur m-o m-r mc- mcc mce mci mcm mco mcr mcu mec mee mei mem meo mer meu mi- mic mie mii mim mio mir miu mmc mme mmi mmm mmo mmr mmu moc moe moi mom moo mor mou mrc mre mri mrm mro mrr mru muc mue mui mum mur muu o-i oc- occ oci ocm oco ocr ocu oec oee oei oem oeo oer oic oie oii oim oio oir oiu om- omc ome omi omm omo omr omu oo- ooc ooi oom ooo oor or- orc ore ori orm oro orr oru ou- ouc oue oui oum ouo our rcc rce rci rcm rco rcr rcu re- rec ree rei rem reo rer reu ric rie rii rim rio rir rmc rme rmi rmm rmo rmr roc roe roi rom roo ror rou rrc rri rrm rrr rru ruc rue rui rum ruo rur ruu ucc uce uci ucm uco ucr ucu uec uee uei uem uer uic uie uii uim uio uir uiu um- umc ume umi umm umo umr umu uoc uoe uom uoo uor ur- urc ure uri urm uro urr uru uuc uue uum uur uuu