-er -ic c-- ccc cce ccf ccg cci cck ccl ccn ccr ce- cec cee cef ceg cei cek cel cen cer cfc cfe cff cfg cfi cfk cfl cfn cfr cgc cge cgg cgi cgl cgn cgr ci- cic cie cif cig cii cik cil cin cir ckc cki cl- clc cle clf clg cli clk cll cln clr cn- cnc cne cnf cng cni cnl cnn cnr crc cre crf crg cri crk crl crn crr ec- ecc ece ecf ecg eci eck ecl ecn ecr eec eee eef eeg eek eel een eer ef- efc efe eff efg efi efl efr egc ege egf egg egi egl egn egr eic eie eif eig eii eik eil ein eir ekc eke ekf ekg eki ekl ekr elc ele elf elg eli elk ell eln elr en- enc ene enf eng eni enk enl enn enr erc ere erf erg eri erk erl ern err fcc fce fcf fcg fci fck fcl fcn fcr fec fee fef feg fei fek fel fen fer ffc ffe fff ffg ffi ffk ffl ffn ffr fgc fge fgf fgg fgi fgl fgn fgr fic fie fif fig fii fik fil fin fir fkc fkf fkg fki fkk fkl flc fle flf flg fli fll fln flr fnc fne fnf fng fni fnk fnl fnn fnr frc fre frf frg fri frk frl frn frr gcc gce gcf gcg gci gck gcl gcn gcr ge- gec gee gef geg gei gek gel gen ger gfc gfe gff gfi gfk gfl gfr ggc ggg ggi ggn ggr gic gie gif gig gii gik gil gin gir gkn glc gle glf glg gli glk gll gln glr gnc gne gnf gni gnl gnn gnr grc gre grf grg gri grk grl grn grr i-f icc ice icf icg ici ick icl icn icr ie- iec iee ief ieg iei iek iel ien ier ifc ife iff ifg ifi ifl ifn ifr igc ige igf igg igi igk igl ign igr iic iie iif iii iil iin iir ikc ike ikf iki ikk ikl ikr il- ilc ile ilf ilg ili ilk ill iln ilr in- inc ine inf ing ini ink inl inn inr ir- irc ire irf irg iri irk irl irn irr kcc kce kcg kci kck kcl kcn kcr ke- kec kee kef keg kei kek kel ken ker kfc kff kfg kfi kgc kgf kgi kgl kic kie kif kig kii kik kil kin kir kkc kke kki kkk kkl kkn kkr kl- klc klf klg kli klr kn- knc kne knf kng kni knk knl knn knr krc krf krg kri krk krl krn krr lcc lce lcf lcg lci lck lcl lcn lcr lec lee lef leg lei lek lel len ler lfc lfe lff lfg lfi lfk lfl lfn lfr lgc lge lgf lgg lgi lgk lgl lgn lgr lic lie lif lig lii lik lil lin lir lkg lkl lkr llc lle llf llg lli llk lll lln llr lnc lne lng lni lnk lnl lnn lnr lrc lrf lrg lri lrk lrn lrr n-i ncc nce ncf ncg nci nck ncl ncn ncr ne- nec nee nef neg nei nek nel nen ner nfc nfe nff nfi nfk nfl nfn nfr ngc nge ngf ngg ngi ngk ngl ngn nic nie nif nig nii nik nil nin nir nkc nke nkf nki nkk nkn nkr nlc nle nlf nlg nli nlk nll nln nlr nnc nne nnf nng nni nnk nnl nnn nrc nre nrf nrg nri nrk nrl nrn nrr rcc rce rcf rcg rci rcl rcn rcr re- rec ree ref reg rei rek rel ren rer rfc rfe rff rfg rfi rfk rfl rfn rfr rgc rge rgf rgg rgi rgk rgn rgr ric rie rif rig rii rik ril rin rir rkc rke rkf rkg rkk rlc rle rlf rlg rli rll rln rlr rnc rng rni rnn rnr rrc rrf rrg rri rrk rrl rrn rrr