-er -ic c-- ccc cce ccg cci ccl ccp ccr ccs ce- cec cee ceg cei cel cep cer ces cgc cge cgg cgi cgl cgp cgr cgs ci- cic cie cig cii cil cip cir cis cl- clc cle clg cli cll clp clr cls cpc cpe cpg cpi cpl cpp cpr cps crc cre crg cri crl crp crr crs csc cse csg csi csl csp csr css ec- ecc ece ecg eci ecl ecr ecs eec eee eeg eel eep eer ees egc ege egg egi egl egp egr egs eic eie eig eii eil eip eir eis elc ele elg eli ell elp elr els ep- epc epe epg epi epl epp epr eps erc ere erg eri erl erp err ers es- esc ese esg esi esl esp esr ess g-p gcc gce gcg gci gcl gcp gcr gcs ge- gec gee geg gei gel gep ger ges ggc ggg ggi ggp ggr ggs gic gie gig gii gil gip gir gis glc gle glg gli gll glp glr gls gpc gpe gpg gpi gpl gpp gpr gps grc gre grg gri grl grp grr grs gsc gse gsg gsi gsl gsp gsr gss icc ice icg ici icl icp icr ics ie- iec iee ieg iei iel iep ier ies igc ige igg igi igl igp igr igs iic iie iii iil iip iir iis il- ilc ile ilg ili ill ilp ilr ils ipc ipe ipg ipi ipl ipp ipr ips ir- irc ire irg iri irl irp irr irs is- isc ise isg isi isl isp isr iss l-p lcc lce lcg lci lcl lcp lcr lcs lec lee leg lei lel lep ler les lgc lge lgg lgi lgl lgp lgr lgs lic lie lig lii lil lip lir lis llc lle llg lli lll llp llr lls lpc lpe lpg lpi lpl lpp lpr lps lrc lrg lri lrp lrr lrs lsc lse lsg lsi lsl lsp lsr lss p-p pcc pce pcg pci pcl pcp pcr pcs pec pee peg pei pel pep per pes pgc pge pgg pgi pgl pgp pgr pgs pic pie pig pii pil pip pir pis plc ple plg pli pll plp plr pls ppc ppe ppg ppi ppl ppp ppr pps prc pre prg pri prl prp prr prs ps- psc pse psg psi psl psp psr pss rcc rce rcg rci rcl rcp rcr rcs re- rec ree reg rei rel rep rer res rgc rge rgg rgi rgp rgr rgs ric rie rig rii ril rip rir ris rlc rle rlg rli rll rlp rlr rls rpc rpe rpg rpi rpl rpp rpr rps rrc rrg rri rrl rrp rrr rrs rsc rse rsg rsi rsl rsp rsr rss scc sce scg sci scl scp scr scs se- sec see seg sei sel sep ser ses sgc sge sgg sgi sgl sgp sgr sgs sic sie sig sii sil sip sir sis slc sle slg sli sll slp slr sls spc spe spg spi spl spp spr sps sr- src sre srg sri srl srp srr srs ss- ssc sse ssg ssi ssl ssp ssr sss