-er -ey c-- ccc cce ccp ccr ccz ce- cec cee cep cer cey cez cpc cpe cpp cpr cpz crc cre crp crr cry crz cyc cye cyp cyr cz- czc cze ec- ecc ece ecr eec eee eep eer eey ep- epc epe epp epr epz erc ere erp err ery erz eyc eye eyp eyr eze ezr ezz p-p pcc pce pcp pcr pec pee pep per pey pez ppc ppe ppp ppr ppz prc pre prp prr pry prz py- pyc pye pyr pzc pzp rcc rce rcp rcr re- rec ree rep rer rey rez rpc rpe rpp rpr rpz rrc rrp rrr ry- ryc rye ryr ryy ryz rze rzy ycc yce ycp ycy yec yee yep yer yey yez yrc yre yrp yyc yye yyy yyz yzr yzy zce zec zee zep zer zez zpc zpe zpp zpr zrp zzr zzy zzz