-er -ey c-- ccc cce cck ccp ccr ce- cec cee cek cep cer cey ckc cky cpc cpe cpk cpp cpr crc cre crk crp crr cry cyc cye cyk cyp cyr ec- ecc ece eck ecr eec eee eek eep eer eey ekc eke ekp ekr eky ep- epc epe epp epr erc ere erk erp err ery eyc eye eyp eyr kcc kce kck kcp kcr ke- kec kee kek kep ker key kkc kke kkk kkp kkr kky kpc kpe kpk kpp kpr krc krk krp krr kry kyc kye kyp kyr p-p pcc pce pck pcp pcr pec pee pek pep per pey pkc pke pkp pkr pky ppc ppe ppk ppp ppr prc pre prk prp prr pry py- pyc pye pyk pyr rcc rce rcp rcr re- rec ree rek rep rer rey rkc rke rkk rkp rky rpc rpe rpk rpp rpr rrc rrk rrp rrr ry- ryc rye ryk ryr ryy ycc yce ycp ycy yec yee yek yep yer yey ykk yrc yre yrp yyc yye yyy