-er -ic c-- ccc cce cci cck ccl ccn ccp ccr ce- cec cee cei cek cel cen cep cer ci- cic cie cii cik cil cin cip cir ckc cki cl- clc cle cli clk cll cln clp clr cn- cnc cne cni cnl cnn cnp cnr cpc cpe cpi cpk cpl cpn cpp cpr crc cre cri crk crl crn crp crr ec- ecc ece eci eck ecl ecn ecr eec eee eek eel een eep eer eic eie eii eik eil ein eip eir ekc eke eki ekl ekp ekr elc ele eli elk ell eln elp elr en- enc ene eni enk enl enn enp enr ep- epc epe epi epl epn epp epr erc ere eri erk erl ern erp err icc ice ici ick icl icn icp icr ie- iec iee iei iek iel ien iep ier iic iie iii iil iin iip iir ikc ike iki ikk ikl ikr il- ilc ile ili ilk ill iln ilp ilr in- inc ine ini ink inl inn inp inr ipc ipe ipi ipl ipn ipp ipr ir- irc ire iri irk irl irn irp irr kcc kce kci kck kcl kcn kcp kcr ke- kec kee kei kek kel ken kep ker kic kie kii kik kil kin kip kir kkc kke kki kkk kkl kkn kkp kkr kl- klc kli klr kn- knc kne kni knk knl knn knp knr kpc kpe kpi kpk kpl kpn kpp kpr krc kri krk krl krn krp krr l-p lcc lce lci lck lcl lcn lcp lcr lec lee lei lek lel len lep ler lic lie lii lik lil lin lip lir lkl lkp lkr llc lle lli llk lll lln llp llr lnc lne lni lnk lnl lnn lnp lnr lpc lpe lpi lpk lpl lpn lpp lpr lrc lri lrk lrn lrp lrr n-i ncc nce nci nck ncl ncn ncp ncr ne- nec nee nei nek nel nen nep ner nic nie nii nik nil nin nip nir nkc nke nki nkk nkn nkp nkr nlc nle nli nlk nll nln nlp nlr nnc nne nni nnk nnl nnn nnp npc npe npi npl npn npp npr nrc nre nri nrk nrl nrn nrp nrr p-p pcc pce pci pck pcl pcn pcp pcr pec pee pei pek pel pen pep per pic pie pii pik pil pin pip pir pkc pke pki pkl pkn pkp pkr plc ple pli plk pll pln plp plr pn- pnc pne pni pnk pnl pnn pnp pnr ppc ppe ppi ppk ppl ppn ppp ppr prc pre pri prk prl prn prp prr rcc rce rci rcl rcn rcp rcr re- rec ree rei rek rel ren rep rer ric rie rii rik ril rin rip rir rkc rke rkk rkp rlc rle rli rll rln rlp rlr rnc rni rnn rnp rnr rpc rpe rpi rpk rpl rpn rpp rpr rrc rri rrk rrl rrn rrp rrr