-er -ic c-- ccc cce ccg cci ccr ccs ccz ce- cec cee ceg cei cer ces cez cgc cge cgg cgi cgr cgs ci- cic cie cig cii cir cis crc cre crg cri crr crs crz csc cse csg csi csr css csz cz- czc cze ec- ecc ece ecg eci ecr ecs eec eee eeg eer ees egc ege egg egi egr egs eic eie eig eii eir eis erc ere erg eri err ers erz es- esc ese esg esi esr ess eze ezr ezs ezz gcc gce gcg gci gcr gcs ge- gec gee geg gei ger ges gez ggc ggg ggi ggr ggs ggz gic gie gig gii gir gis giz grc gre grg gri grr grs gsc gse gsg gsi gsr gss gzr icc ice icg ici icr ics icz ie- iec iee ieg iei ier ies igc ige igg igi igr igs iic iie iii iir iis ir- irc ire irg iri irr irs is- isc ise isg isi isr iss ize izi izz rcc rce rcg rci rcr rcs re- rec ree reg rei rer res rez rgc rge rgg rgi rgr rgs ric rie rig rii rir ris riz rrc rrg rri rrr rrs rsc rse rsg rsi rsr rss rze scc sce scg sci scr scs se- sec see seg sei ser ses sez sgc sge sgg sgi sgr sgs sic sie sig sii sir sis sr- src sre srg sri srr srs ss- ssc sse ssg ssi ssr sss ssz sze szi szr z-g zce zcs zec zee zer zes zez zgg zgi zgs zie zig zir zis ziz zrs zse zsg zsi zsz zzr zzs zzz