-er -ic c-- ccc cce ccg cci cck ccn ccr ccs ce- cec cee ceg cei cek cen cer ces cgc cge cgg cgi cgn cgr cgs ci- cic cie cig cii cik cin cir cis ckc cki cks cn- cnc cne cng cni cnn cnr cns crc cre crg cri crk crn crr crs csc cse csg csi csk csn csr css ec- ecc ece ecg eci eck ecn ecr ecs eec eee eeg eek een eer ees egc ege egg egi egn egr egs eic eie eig eii eik ein eir eis ekc eke ekg eki ekr eks en- enc ene eng eni enk enn enr ens erc ere erg eri erk ern err ers es- esc ese esg esi esk esn esr ess gcc gce gcg gci gck gcn gcr gcs ge- gec gee geg gei gek gen ger ges ggc ggg ggi ggn ggr ggs gic gie gig gii gik gin gir gis gkn gks gnc gne gni gnn gnr gns grc gre grg gri grk grn grr grs gsc gse gsg gsi gsk gsn gsr gss icc ice icg ici ick icn icr ics ie- iec iee ieg iei iek ien ier ies igc ige igg igi igk ign igr igs iic iie iii iin iir iis ikc ike iki ikk ikr iks in- inc ine ing ini ink inn inr ins ir- irc ire irg iri irk irn irr irs is- isc ise isg isi isk isn isr iss kcc kce kcg kci kck kcn kcr kcs ke- kec kee keg kei kek ken ker kes kgc kgi kgs kic kie kig kii kik kin kir kis kkc kke kki kkk kkn kkr kks kn- knc kne kng kni knk knn knr krc krg kri krk krn krr krs ksc kse ksg ksi ksk ksn ksr kss n-i ncc nce ncg nci nck ncn ncr ncs ne- nec nee neg nei nek nen ner nes ngc nge ngg ngi ngk ngn ngs nic nie nig nii nik nin nir nis nkc nke nki nkk nkn nkr nks nnc nne nng nni nnk nnn nns nrc nre nrg nri nrk nrn nrr nrs nsc nse nsg nsi nsk nsn nsr nss rcc rce rcg rci rcn rcr rcs re- rec ree reg rei rek ren rer res rgc rge rgg rgi rgk rgn rgr rgs ric rie rig rii rik rin rir ris rkc rke rkg rkk rks rnc rng rni rnn rnr rns rrc rrg rri rrk rrn rrr rrs rsc rse rsg rsi rsk rsn rsr rss scc sce scg sci sck scn scr scs se- sec see seg sei sek sen ser ses sgc sge sgg sgi sgk sgn sgr sgs sic sie sig sii sik sin sir sis sk- skc ske skg ski skk skr sks snc sne sng sni snk snn snr sns sr- src sre srg sri srk srn srr srs ss- ssc sse ssg ssi ssk ssn ssr sss