-er -ic c-- ccc cce cci cck ccr ccz ce- cec cee cei cek cer cez ci- cic cie cii cik cir ckc cki crc cre cri crk crr crz cz- czc cze czk ec- ecc ece eci eck ecr eec eee eek eer eic eie eii eik eir ekc eke eki ekr erc ere eri erk err erz eze ezr ezz icc ice ici ick icr icz ie- iec iee iei iek ier iic iie iii iir ikc ike iki ikk ikr ir- irc ire iri irk irr ize izi izz k-z kcc kce kci kck kcr ke- kec kee kei kek ker kez kic kie kii kik kir kiz kkc kke kki kkk kkr krc kri krk krr rcc rce rci rcr re- rec ree rei rek rer rez ric rie rii rik rir riz rkc rke rkk rkz rrc rri rrk rrr rze zce zec zee zek zer zez zie zik zir ziz zzr zzz