-er -ic c-- ccc ccd cce cci ccm ccr ccs ccu cdc cdd cde cdi cdm cdr cds cdu ce- cec ced cee cei cem cer ces ceu ci- cic cid cie cii cim cir cis ciu cmc cmd cme cmi cmm cmr cms cmu crc crd cre cri crm crr crs cru csc csd cse csi csm csr css csu cuc cud cue cui cum cur cus cuu dcc dcd dce dci dcm dcr dcs dcu ddc ddd dde ddi ddm ddr dds ddu de- dec ded dee dei dem der des deu di- dic did die dii dim dir dis diu dmc dmd dme dmi dmm dmr dms dmu drc drd dre dri drm drr drs dru dsc dsd dse dsi dsm dsr dss dsu duc dud due dui dum dur dus ec- ecc ecd ece eci ecm ecr ecs ecu ed- edc edd ede edi edm edr eds edu eec eed eee eem eer ees eic eid eie eii eim eir eis eiu em- emc emd eme emi emm emr ems emu erc erd ere eri erm err ers eru es- esc esd ese esi esm esr ess esu eu- euc eud eue eui eur eus i-d icc icd ice ici icm icr ics icu idc idd ide idi idm idr ids idu ie- iec ied iee iei iem ier ies iic iid iie iii iim iir iis iiu im- imc imd ime imi imm ims imu ir- irc ird ire iri irm irr irs iru is- isc isd ise isi ism isr iss isu iu- iuc iud iue iui ium iur ius m-r mc- mcc mcd mce mci mcm mcr mcs mcu mdc mdd mde mdi mdm mdr mds mdu mec med mee mei mem mer mes meu mi- mic mid mie mii mim mir mis miu mmc mmd mme mmi mmm mmr mms mmu mrc mrd mre mri mrm mrr mrs mru msc msd mse msi msm msr mss msu muc mud mue mui mum mur mus muu rcc rcd rce rci rcm rcr rcs rcu rdc rdd rde rdi rdm rdr rds rdu re- rec red ree rei rem rer res reu ric rid rie rii rim rir ris rmc rmd rme rmi rmm rmr rms rrc rrd rri rrm rrr rrs rru rsc rsd rse rsi rsm rsr rss rsu ruc rud rue rui rum rur rus ruu scc scd sce sci scm scr scs scu sdc sdd sde sdi sdm sdr sds sdu se- sec sed see sei sem ser ses seu sic sid sie sii sim sir sis siu smc smd sme smi smm smr sms smu sr- src srd sre sri srm srr srs ss- ssc ssd sse ssi ssm ssr sss ssu suc sud sue sui sum sur sus suu ucc ucd uce uci ucm ucr ucs ucu udc udd ude udi udm udr uds udu uec ued uee uei uem uer ues uic uid uie uii uim uir uis uiu um- umc umd ume umi umm umr ums umu ur- urc urd ure uri urm urr urs uru usc usd use usi usm usr uss usu uuc uue uum uur uus uuu