-er -ey c-- ccc cce ccn ccp ccr ccs ce- cec cee cen cep cer ces cey cn- cnc cne cnn cnp cnr cns cny cpc cpe cpn cpp cpr cps crc cre crn crp crr crs cry csc cse csn csp csr css csy cyc cye cyn cyp cyr cys ec- ecc ece ecn ecr ecs eec eee een eep eer ees eey en- enc ene enn enp enr ens eny ep- epc epe epn epp epr eps erc ere ern erp err ers ery es- esc ese esn esp esr ess esy eyc eye eyn eyp eyr eys ncc nce ncn ncp ncr ncs ne- nec nee nen nep ner nes ney nnc nne nnn nnp nns npc npe npn npp npr nps nrc nre nrn nrp nrr nrs nry nsc nse nsn nsp nsr nss nsy nyc nye nyn nyp nys nyy p-p pcc pce pcn pcp pcr pcs pec pee pen pep per pes pey pn- pnc pne pnn pnp pnr pns pny ppc ppe ppn ppp ppr pps prc pre prn prp prr prs pry ps- psc pse psn psp psr pss psy py- pyc pye pyn pyr pys rcc rce rcn rcp rcr rcs re- rec ree ren rep rer res rey rnc rnn rnp rnr rns rny rpc rpe rpn rpp rpr rps rrc rrn rrp rrr rrs rsc rse rsn rsp rsr rss ry- ryc rye ryn ryr rys ryy scc sce scn scp scr scs se- sec see sen sep ser ses sey snc sne snn snp snr sns sny spc spe spn spp spr sps spy sr- src sre srn srp srr srs sry ss- ssc sse ssn ssp ssr sss sy- syc sye syn syp syr sys ycc yce ycp ycs ycy yec yee yen yep yer yes yey yne ynn ynp yns yny yps yrc yre yrn yrp yrs ysc yse ysp ysr yss ysy yyc yye yys yyy