-er c-- ccc cce ccm ccn ccr ccs ccu ce- cec cee cem cen cer ces ceu cmc cme cmm cmn cmr cms cmu cn- cnc cne cnm cnn cnr cns cnu crc cre crm crn crr crs cru csc cse csm csn csr css csu cuc cue cum cun cur cus cuu ec- ecc ece ecm ecn ecr ecs ecu eec eee eem een eer ees em- emc eme emm emn emr ems emu en- enc ene enm enn enr ens enu erc ere erm ern err ers eru es- esc ese esm esn esr ess esu eu- euc eue eun eur eus m-r mc- mcc mce mcm mcn mcr mcs mcu mec mee mem men mer mes meu mmc mme mmm mmn mmr mms mmu mnc mne mnm mnn mnr mns mnu mrc mre mrm mrn mrr mrs mru msc mse msm msn msr mss msu muc mue mum mun mur mus muu ncc nce ncm ncn ncr ncs ncu ne- nec nee nem nen ner nes neu nmc nme nmm nmn nmr nms nmu nnc nne nnm nnn nns nnu nrc nre nrm nrn nrr nrs nru nsc nse nsm nsn nsr nss nsu nuc nue num nun nur nus nuu rcc rce rcm rcn rcr rcs rcu re- rec ree rem ren rer res reu rmc rme rmm rmn rmr rms rnc rnm rnn rnr rns rnu rrc rrm rrn rrr rrs rru rsc rse rsm rsn rsr rss rsu ruc rue rum run rur rus ruu scc sce scm scn scr scs scu se- sec see sem sen ser ses seu smc sme smm smn smr sms smu snc sne snm snn snr sns snu sr- src sre srm srn srr srs ss- ssc sse ssm ssn ssr sss ssu suc sue sum sun sur sus suu ucc uce ucm ucn ucr ucs ucu uec uee uem uen uer ues um- umc ume umm umn umr ums umu un- unc une unm unn unr uns unu ur- urc ure urm urn urr urs uru usc use usm usn usr uss usu uuc uue uum uun uur uus uuu