-er -ic c-- ccc cce ccf ccg cci cck ccn ccp ccr ce- cec cee cef ceg cei cek cen cep cer cfc cfe cff cfg cfi cfk cfn cfp cfr cgc cge cgg cgi cgn cgp cgr ci- cic cie cif cig cii cik cin cip cir ckc cki cn- cnc cne cnf cng cni cnn cnp cnr cpc cpe cpf cpg cpi cpk cpn cpp cpr crc cre crf crg cri crk crn crp crr ec- ecc ece ecf ecg eci eck ecn ecr eec eee eef eeg eek een eep eer ef- efc efe eff efg efi efp efr egc ege egf egg egi egn egp egr eic eie eif eig eii eik ein eip eir ekc eke ekf ekg eki ekp ekr en- enc ene enf eng eni enk enn enp enr ep- epc epe epf epg epi epn epp epr erc ere erf erg eri erk ern erp err fcc fce fcf fcg fci fck fcn fcp fcr fec fee fef feg fei fek fen fep fer ffc ffe fff ffg ffi ffk ffn ffp ffr fgc fge fgf fgg fgi fgn fgp fgr fic fie fif fig fii fik fin fip fir fkc fkf fkg fki fkk fkp fnc fne fnf fng fni fnk fnn fnp fnr fpc fpe fpg fpi fpk fpn fpp fpr frc fre frf frg fri frk frn frp frr g-p gcc gce gcf gcg gci gck gcn gcp gcr ge- gec gee gef geg gei gek gen gep ger gfc gfe gff gfi gfk gfp gfr ggc ggg ggi ggn ggp ggr gic gie gif gig gii gik gin gip gir gkn gkp gnc gne gnf gni gnn gnp gnr gpc gpe gpf gpg gpi gpk gpn gpp gpr grc gre grf grg gri grk grn grp grr i-f icc ice icf icg ici ick icn icp icr ie- iec iee ief ieg iei iek ien iep ier ifc ife iff ifg ifi ifn ifp ifr igc ige igf igg igi igk ign igp igr iic iie iif iii iin iip iir ikc ike ikf iki ikk ikr in- inc ine inf ing ini ink inn inp inr ipc ipe ipf ipg ipi ipn ipp ipr ir- irc ire irf irg iri irk irn irp irr kcc kce kcg kci kck kcn kcp kcr ke- kec kee kef keg kei kek ken kep ker kfc kff kfg kfi kgc kgf kgi kgp kic kie kif kig kii kik kin kip kir kkc kke kki kkk kkn kkp kkr kn- knc kne knf kng kni knk knn knp knr kpc kpe kpf kpi kpk kpn kpp kpr krc krf krg kri krk krn krp krr n-i ncc nce ncf ncg nci nck ncn ncp ncr ne- nec nee nef neg nei nek nen nep ner nfc nfe nff nfi nfk nfn nfp nfr ngc nge ngf ngg ngi ngk ngn ngp nic nie nif nig nii nik nin nip nir nkc nke nkf nki nkk nkn nkp nkr nnc nne nnf nng nni nnk nnn nnp npc npe npf npg npi npn npp npr nrc nre nrf nrg nri nrk nrn nrp nrr p-p pcc pce pcf pcg pci pck pcn pcp pcr pec pee pef peg pei pek pen pep per pfc pfe pff pfg pfi pfk pfn pfp pfr pgc pge pgf pgg pgi pgk pgn pgp pgr pic pie pif pig pii pik pin pip pir pkc pke pkf pkg pki pkn pkp pkr pn- pnc pne pnf png pni pnk pnn pnp pnr ppc ppe ppf ppg ppi ppk ppn ppp ppr prc pre prf prg pri prk prn prp prr rcc rce rcf rcg rci rcn rcp rcr re- rec ree ref reg rei rek ren rep rer rfc rfe rff rfg rfi rfk rfn rfp rfr rgc rge rgf rgg rgi rgk rgn rgp rgr ric rie rif rig rii rik rin rip rir rkc rke rkf rkg rkk rkp rnc rng rni rnn rnp rnr rpc rpe rpf rpg rpi rpk rpn rpp rpr rrc rrf rrg rri rrk rrn rrp rrr