-er c-- ccc ccd cce cck ccm ccr ccs ccu cdc cdd cde cdk cdm cdr cds cdu ce- cec ced cee cek cem cer ces ceu ckc ckd ckm cks cmc cmd cme cmk cmm cmr cms cmu crc crd cre crk crm crr crs cru csc csd cse csk csm csr css csu cuc cud cue cuk cum cur cus cuu dcc dcd dce dck dcm dcr dcs dcu ddc ddd dde ddk ddm ddr dds ddu de- dec ded dee dek dem der des deu dkc dke dkk dkm dkr dks dku dmc dmd dme dmk dmm dmr dms dmu drc drd dre drk drm drr drs dru dsc dsd dse dsk dsm dsr dss dsu duc dud due duk dum dur dus ec- ecc ecd ece eck ecm ecr ecs ecu ed- edc edd ede edk edm edr eds edu eec eed eee eek eem eer ees ekc ekd eke ekr eks eku em- emc emd eme emk emm emr ems emu erc erd ere erk erm err ers eru es- esc esd ese esk esm esr ess esu eu- euc eud eue eur eus kcc kcd kce kck kcm kcr kcs kcu kdc kde kdk kdm kdr kds kdu ke- kec ked kee kek kem ker kes kkc kke kkk kkm kkr kks kku kmc kmd kme kmk kmm kms kmu krc krd krk krr krs kru ksc ksd kse ksk ksm ksr kss ksu kuc kud kue kuk kum kur kus kuu m-r mc- mcc mcd mce mck mcm mcr mcs mcu mdc mdd mde mdk mdm mdr mds mdu mec med mee mek mem mer mes meu mkc mkd mke mkk mkm mkr mks mku mmc mmd mme mmk mmm mmr mms mmu mrc mrd mre mrk mrm mrr mrs mru msc msd mse msk msm msr mss msu muc mud mue muk mum mur mus muu rcc rcd rce rcm rcr rcs rcu rdc rdd rde rdm rdr rds rdu re- rec red ree rek rem rer res reu rkc rke rkk rkm rks rku rmc rmd rme rmm rmr rms rrc rrd rrk rrm rrr rrs rru rsc rsd rse rsk rsm rsr rss rsu ruc rud rue ruk rum rur rus ruu scc scd sce sck scm scr scs scu sdc sdd sde sdk sdm sdr sds sdu se- sec sed see sek sem ser ses seu sk- skc skd ske skk skm skr sks sku smc smd sme smk smm smr sms smu sr- src srd sre srk srm srr srs ss- ssc ssd sse ssk ssm ssr sss ssu suc sud sue suk sum sur sus suu ucc ucd uce uck ucm ucr ucs ucu udc udd ude udk udm udr uds udu uec ued uee uem uer ues ukc uke ukk ukr uku um- umc umd ume umm umr ums umu ur- urc urd ure urk urm urr urs uru usc usd use usk usm usr uss usu uuc uue uum uur uus uuu