-er -ey c-- ccc cce cck ccr cct ce- cec cee cek cer cet cey ckc ckt cky crc cre crk crr crt cry ctc cte ctk ctr ctt cty cyc cye cyk cyr cyt ec- ecc ece eck ecr ect eec eee eek eer eet eey ekc eke ekr ekt eky erc ere erk err ert ery etc ete etk etr ett ety eyc eye eyr eyt k-t kcc kce kck kcr kct ke- kec kee kek ker ket key kkc kke kkk kkr kkt kky krc krk krr krt kry ktc kte ktk ktr ktt kyc kye kyr kyt rcc rce rcr rct re- rec ree rek rer ret rey rkc rke rkk rkt rky rrc rrk rrr rrt rtc rte rtk rtr rtt rty ry- ryc rye ryk ryr ryy tcc tce tck tcr tct te- tec tee tek ter tet tey tkc tke tkk tkr tkt tky trc tre trk trr trt try ttc tte ttk ttr ttt tty tyc tye tyr tyt ycc yce ycy yec yee yek yer yet yey ykk yrc yre yrt ytc yte ytk ytr ytt yyc yye yyt yyy