-er -ic c-- ccc cce cci cck ccl ccr ce- cec cee cei cek cel cer ci- cic cie cii cik cil cir ckc cki cl- clc cle cli clk cll clr crc cre cri crk crl crr ec- ecc ece eci eck ecl ecr eec eee eek eel eer eic eie eii eik eil eir ekc eke eki ekl ekr elc ele eli elk ell elr erc ere eri erk erl err icc ice ici ick icl icr ie- iec iee iei iek iel ier iic iie iii iil iir ikc ike iki ikk ikl ikr il- ilc ile ili ilk ill ilr ir- irc ire iri irk irl irr kcc kce kci kck kcl kcr ke- kec kee kei kek kel ker kic kie kii kik kil kir kkc kke kki kkk kkl kkr kl- klc kli klr krc kri krk krl krr lcc lce lci lck lcl lcr lec lee lei lek lel ler lic lie lii lik lil lir lkl lkr llc lle lli llk lll llr lrc lri lrk lrr rcc rce rci rcl rcr re- rec ree rei rek rel rer ric rie rii rik ril rir rkc rke rkk rlc rle rli rll rlr rrc rri rrk rrl rrr