-er -ic c-- ccc cce cci cck ccl ccn ccr ce- cec cee cei cek cel cen cer ci- cic cie cii cik cil cin cir ckc cki cl- clc cle cli clk cll cln clr cn- cnc cne cni cnl cnn cnr crc cre cri crk crl crn crr ec- ecc ece eci eck ecl ecn ecr eec eee eek eel een eer eic eie eii eik eil ein eir ekc eke eki ekl ekr elc ele eli elk ell eln elr en- enc ene eni enk enl enn enr erc ere eri erk erl ern err icc ice ici ick icl icn icr ie- iec iee iei iek iel ien ier iic iie iii iil iin iir ikc ike iki ikk ikl ikr il- ilc ile ili ilk ill iln ilr in- inc ine ini ink inl inn inr ir- irc ire iri irk irl irn irr kcc kce kci kck kcl kcn kcr ke- kec kee kei kek kel ken ker kic kie kii kik kil kin kir kkc kke kki kkk kkl kkn kkr kl- klc kli klr kn- knc kne kni knk knl knn knr krc kri krk krl krn krr lcc lce lci lck lcl lcn lcr lec lee lei lek lel len ler lic lie lii lik lil lin lir lkl lkr llc lle lli llk lll lln llr lnc lne lni lnk lnl lnn lnr lrc lri lrk lrn lrr n-i ncc nce nci nck ncl ncn ncr ne- nec nee nei nek nel nen ner nic nie nii nik nil nin nir nkc nke nki nkk nkn nkr nlc nle nli nlk nll nln nlr nnc nne nni nnk nnl nnn nrc nre nri nrk nrl nrn nrr rcc rce rci rcl rcn rcr re- rec ree rei rek rel ren rer ric rie rii rik ril rin rir rkc rke rkk rlc rle rli rll rln rlr rnc rni rnn rnr rrc rri rrk rrl rrn rrr