-er c-- ccc cce ccm ccr ccs ccu ce- cec cee cem ceq cer ces ceu cmc cme cmm cmq cmr cms cmu cqc cqm cqs crc cre crm crq crr crs cru csc cse csm csq csr css csu cuc cue cum cuq cur cus cuu ec- ecc ece ecm ecq ecr ecs ecu eec eee eem eer ees em- emc eme emm emr ems emu eqe eqq eqs equ erc ere erm erq err ers eru es- esc ese esm esq esr ess esu eu- euc eue eur eus m-r mc- mcc mce mcm mcq mcr mcs mcu mec mee mem meq mer mes meu mmc mme mmm mmr mms mmu mqr mrc mre mrm mrq mrr mrs mru msc mse msm msq msr mss msu muc mue mum mur mus muu qcc qcm qcs qec qee qem qmc qme qmr qms qmu qqq qqu qrc qre qrm qrs qru qsc qsm qsr qu- que qum qur qus rcc rce rcm rcr rcs rcu re- rec ree rem req rer res reu rmc rme rmm rmq rmr rms rqc rqm rqs rrc rrm rrq rrr rrs rru rsc rse rsm rsq rsr rss rsu ruc rue rum rur rus ruu scc sce scm scr scs scu se- sec see sem seq ser ses seu smc sme smm smr sms smu sqm sqq sqr sqs sr- src sre srm srq srr srs ss- ssc sse ssm ssq ssr sss ssu suc sue sum suq sur sus suu ucc uce ucm ucr ucs ucu uec uee uem uer ues um- umc ume umm umr ums umu ur- urc ure urm urr urs uru usc use usm usr uss usu uuc uue uum uur uus uuu