-er -ic c-- ccc cce ccg cci cck ccn ccp ccr ce- cec cee ceg cei cek cen cep cer cgc cge cgg cgi cgn cgp cgr ci- cic cie cig cii cik cin cip cir ckc cki cn- cnc cne cng cni cnn cnp cnr cpc cpe cpg cpi cpk cpn cpp cpr crc cre crg cri crk crn crp crr ec- ecc ece ecg eci eck ecn ecr eec eee eeg eek een eep eer egc ege egg egi egn egp egr eic eie eig eii eik ein eip eir ekc eke ekg eki ekp ekr en- enc ene eng eni enk enn enp enr ep- epc epe epg epi epn epp epr erc ere erg eri erk ern erp err g-p gcc gce gcg gci gck gcn gcp gcr ge- gec gee geg gei gek gen gep ger ggc ggg ggi ggn ggp ggr gic gie gig gii gik gin gip gir gkn gkp gnc gne gni gnn gnp gnr gpc gpe gpg gpi gpk gpn gpp gpr grc gre grg gri grk grn grp grr icc ice icg ici ick icn icp icr ie- iec iee ieg iei iek ien iep ier igc ige igg igi igk ign igp igr iic iie iii iin iip iir ikc ike iki ikk ikr in- inc ine ing ini ink inn inp inr ipc ipe ipg ipi ipn ipp ipr ir- irc ire irg iri irk irn irp irr kcc kce kcg kci kck kcn kcp kcr ke- kec kee keg kei kek ken kep ker kgc kgi kgp kic kie kig kii kik kin kip kir kkc kke kki kkk kkn kkp kkr kn- knc kne kng kni knk knn knp knr kpc kpe kpi kpk kpn kpp kpr krc krg kri krk krn krp krr n-i ncc nce ncg nci nck ncn ncp ncr ne- nec nee neg nei nek nen nep ner ngc nge ngg ngi ngk ngn ngp nic nie nig nii nik nin nip nir nkc nke nki nkk nkn nkp nkr nnc nne nng nni nnk nnn nnp npc npe npg npi npn npp npr nrc nre nrg nri nrk nrn nrp nrr p-p pcc pce pcg pci pck pcn pcp pcr pec pee peg pei pek pen pep per pgc pge pgg pgi pgk pgn pgp pgr pic pie pig pii pik pin pip pir pkc pke pkg pki pkn pkp pkr pn- pnc pne png pni pnk pnn pnp pnr ppc ppe ppg ppi ppk ppn ppp ppr prc pre prg pri prk prn prp prr rcc rce rcg rci rcn rcp rcr re- rec ree reg rei rek ren rep rer rgc rge rgg rgi rgk rgn rgp rgr ric rie rig rii rik rin rip rir rkc rke rkg rkk rkp rnc rng rni rnn rnp rnr rpc rpe rpg rpi rpk rpn rpp rpr rrc rrg rri rrk rrn rrp rrr