-er -ic c-- ccc cce ccg cci ccn ccr ccs ce- cec cee ceg cei cen cer ces cgc cge cgg cgi cgn cgr cgs ci- cic cie cig cii cin cir cis cn- cnc cne cng cni cnn cnr cns crc cre crg cri crn crr crs csc cse csg csi csn csr css ec- ecc ece ecg eci ecn ecr ecs eec eee eeg een eer ees egc ege egg egi egn egr egs eic eie eig eii ein eir eis en- enc ene eng eni enn enr ens erc ere erg eri ern err ers es- esc ese esg esi esn esr ess gcc gce gcg gci gcn gcr gcs ge- gec gee geg gei gen ger ges ggc ggg ggi ggn ggr ggs gic gie gig gii gin gir gis gnc gne gni gnn gnr gns grc gre grg gri grn grr grs gsc gse gsg gsi gsn gsr gss icc ice icg ici icn icr ics ie- iec iee ieg iei ien ier ies igc ige igg igi ign igr igs iic iie iii iin iir iis in- inc ine ing ini inn inr ins ir- irc ire irg iri irn irr irs is- isc ise isg isi isn isr iss n-i ncc nce ncg nci ncn ncr ncs ne- nec nee neg nei nen ner nes ngc nge ngg ngi ngn ngs nic nie nig nii nin nir nis nnc nne nng nni nnn nns nrc nre nrg nri nrn nrr nrs nsc nse nsg nsi nsn nsr nss rcc rce rcg rci rcn rcr rcs re- rec ree reg rei ren rer res rgc rge rgg rgi rgn rgr rgs ric rie rig rii rin rir ris rnc rng rni rnn rnr rns rrc rrg rri rrn rrr rrs rsc rse rsg rsi rsn rsr rss scc sce scg sci scn scr scs se- sec see seg sei sen ser ses sgc sge sgg sgi sgn sgr sgs sic sie sig sii sin sir sis snc sne sng sni snn snr sns sr- src sre srg sri srn srr srs ss- ssc sse ssg ssi ssn ssr sss