-er c-- ccc cce ccg ccl ccn ccr ccs ce- cec cee ceg cel cen cer ces cgc cge cgg cgl cgn cgr cgs cl- clc cle clg cll cln clr cls cn- cnc cne cng cnl cnn cnr cns crc cre crg crl crn crr crs csc cse csg csl csn csr css ec- ecc ece ecg ecl ecn ecr ecs eec eee eeg eel een eer ees egc ege egg egl egn egr egs elc ele elg ell eln elr els en- enc ene eng enl enn enr ens erc ere erg erl ern err ers es- esc ese esg esl esn esr ess gcc gce gcg gcl gcn gcr gcs ge- gec gee geg gel gen ger ges ggc ggg ggn ggr ggs glc gle glg gll gln glr gls gnc gne gnl gnn gnr gns grc gre grg grl grn grr grs gsc gse gsg gsl gsn gsr gss lcc lce lcg lcl lcn lcr lcs lec lee leg lel len ler les lgc lge lgg lgl lgn lgr lgs llc lle llg lll lln llr lls lnc lne lng lnl lnn lnr lns lrc lrg lrn lrr lrs lsc lse lsg lsl lsn lsr lss ncc nce ncg ncl ncn ncr ncs ne- nec nee neg nel nen ner nes ngc nge ngg ngl ngn ngs nlc nle nlg nll nln nlr nls nnc nne nng nnl nnn nns nrc nre nrg nrl nrn nrr nrs nsc nse nsg nsl nsn nsr nss rcc rce rcg rcl rcn rcr rcs re- rec ree reg rel ren rer res rgc rge rgg rgn rgr rgs rlc rle rlg rll rln rlr rls rnc rng rnn rnr rns rrc rrg rrl rrn rrr rrs rsc rse rsg rsl rsn rsr rss scc sce scg scl scn scr scs se- sec see seg sel sen ser ses sgc sge sgg sgl sgn sgr sgs slc sle slg sll sln slr sls snc sne sng snl snn snr sns sr- src sre srg srl srn srr srs ss- ssc sse ssg ssl ssn ssr sss