-er c-- ccc cce ccg ccr ccs ccu ce- cec cee ceg ceq cer ces ceu cgc cge cgg cgr cgs cgu cqc cqg cqs crc cre crg crq crr crs cru csc cse csg csq csr css csu cuc cue cug cuq cur cus cuu ec- ecc ece ecg ecq ecr ecs ecu eec eee eeg eer ees egc ege egg egr egs egu eqe eqq eqs equ erc ere erg erq err ers eru es- esc ese esg esq esr ess esu eu- euc eue eug eur eus gcc gce gcg gcr gcs gcu ge- gec gee geg ger ges geu ggc ggg ggr ggs ggu gqs grc gre grg grq grr grs gru gsc gse gsg gsr gss gsu gu- guc gue gug gur gus guu qcc qcs qec qee qgc qqq qqu qrc qre qrg qrs qru qsc qsr qu- que qur qus rcc rce rcg rcr rcs rcu re- rec ree reg req rer res reu rgc rge rgg rgr rgs rqc rqs rrc rrg rrq rrr rrs rru rsc rse rsg rsq rsr rss rsu ruc rue rug rur rus ruu scc sce scg scr scs scu se- sec see seg seq ser ses seu sgc sge sgg sgr sgs sgu sqq sqr sqs sr- src sre srg srq srr srs ss- ssc sse ssg ssq ssr sss ssu suc sue sug suq sur sus suu ucc uce ucg ucr ucs ucu uec uee ueg uer ues ugc uge ugg ugr ugs ugu ur- urc ure urg urr urs uru usc use usg usr uss usu uuc uue uug uur uus uuu