-er -ey c-- ccc cce ccp ccr cct ce- cec cee cep cer cet cey cpc cpe cpp cpr cpt crc cre crp crr crt cry ctc cte ctp ctr ctt cty cyc cye cyp cyr cyt ec- ecc ece ecr ect eec eee eep eer eet eey ep- epc epe epp epr ept erc ere erp err ert ery etc ete etp etr ett ety eyc eye eyp eyr eyt p-p pcc pce pcp pcr pct pec pee pep per pet pey ppc ppe ppp ppr ppt prc pre prp prr prt pry pt- ptc pte ptp ptr ptt pty py- pyc pye pyr pyt rcc rce rcp rcr rct re- rec ree rep rer ret rey rpc rpe rpp rpr rpt rrc rrp rrr rrt rtc rte rtp rtr rtt rty ry- ryc rye ryr ryy tcc tce tcp tcr tct te- tec tee tep ter tet tey tpc tpe tpp tpr tpt trc tre trp trr trt try ttc tte ttp ttr ttt tty tyc tye typ tyr tyt ycc yce ycp ycy yec yee yep yer yet yey yrc yre yrp yrt ytc yte ytp ytr ytt yyc yye yyt yyy