-er -ey c-- ccc cce ccn ccr ccs ccu ce- cec cee cen cer ces ceu cey cn- cnc cne cnn cnr cns cnu cny crc cre crn crr crs cru cry csc cse csn csr css csu csy cuc cue cun cur cus cuu cuy cyc cye cyn cyr cys ec- ecc ece ecn ecr ecs ecu eec eee een eer ees eey en- enc ene enn enr ens enu eny erc ere ern err ers eru ery es- esc ese esn esr ess esu esy eu- euc eue eun eur eus eyc eye eyn eyr eys ncc nce ncn ncr ncs ncu ne- nec nee nen ner nes neu ney nnc nne nnn nns nnu nrc nre nrn nrr nrs nru nry nsc nse nsn nsr nss nsu nsy nuc nue nun nur nus nuu nuy nyc nye nyn nys nyu nyy rcc rce rcn rcr rcs rcu re- rec ree ren rer res reu rey rnc rnn rnr rns rnu rny rrc rrn rrr rrs rru rsc rse rsn rsr rss rsu ruc rue run rur rus ruu ruy ry- ryc rye ryn ryr rys ryu ryy scc sce scn scr scs scu se- sec see sen ser ses seu sey snc sne snn snr sns snu sny sr- src sre srn srr srs sry ss- ssc sse ssn ssr sss ssu suc sue sun sur sus suu suy sy- syc sye syn syr sys syu ucc uce ucn ucr ucs ucu uec uee uen uer ues uey un- unc une unn unr uns unu uny ur- urc ure urn urr urs uru ury usc use usn usr uss usu uuc uue uun uur uus uuu uyc uys uyu ycc yce ycs ycu ycy yec yee yen yer yes yey yne ynn yns ynu yny yrc yre yrn yrs yru ysc yse ysr yss ysu ysy yue yun yur yus yuu yuy yyc yye yys yyu yyy