-er -ey c-- ccc cce ccr ccs ccu ce- cec cee ceq cer ces ceu cey cqc cqs crc cre crq crr crs cru cry csc cse csq csr css csu csy cuc cue cuq cur cus cuu cuy cyc cye cyr cys ec- ecc ece ecq ecr ecs ecu eec eee eer ees eey eqe eqq eqs equ erc ere erq err ers eru ery es- esc ese esq esr ess esu esy eu- euc eue eur eus eyc eye eyr eys qcc qcs qec qee qqq qqu qrc qre qrs qru qsc qsr qu- que qur qus quy rcc rce rcr rcs rcu re- rec ree req rer res reu rey rqc rqs rrc rrq rrr rrs rru rsc rse rsq rsr rss rsu ruc rue rur rus ruu ruy ry- ryc rye ryr rys ryu ryy scc sce scr scs scu se- sec see seq ser ses seu sey sqq sqr sqs sr- src sre srq srr srs sry ss- ssc sse ssq ssr sss ssu suc sue suq sur sus suu suy sy- syc sye syr sys syu ucc uce ucr ucs ucu uec uee uer ues uey ur- urc ure urr urs uru ury usc use usr uss usu uuc uue uur uus uuu uyc uys uyu ycc yce ycs ycu ycy yec yee yer yes yey yqr yrc yre yrs yru ysc yse ysr yss ysu ysy yue yur yus yuu yuy yyc yye yys yyu yyy