-er c-- ccc ccd cce ccg ccn ccr ccs cdc cdd cde cdg cdn cdr cds ce- cec ced cee ceg cen cer ces cgc cgd cge cgg cgn cgr cgs cn- cnc cnd cne cng cnn cnr cns crc crd cre crg crn crr crs csc csd cse csg csn csr css dcc dcd dce dcg dcn dcr dcs ddc ddd dde ddg ddn ddr dds de- dec ded dee deg den der des dgc dgd dge dgg dgn dgr dgs dnc dnd dne dng dnn dnr dns drc drd dre drg drn drr drs dsc dsd dse dsg dsn dsr dss ec- ecc ecd ece ecg ecn ecr ecs ed- edc edd ede edg edn edr eds eec eed eee eeg een eer ees egc egd ege egg egn egr egs en- enc end ene eng enn enr ens erc erd ere erg ern err ers es- esc esd ese esg esn esr ess g-d gcc gcd gce gcg gcn gcr gcs gdc gdd gde gdn gdr gds ge- gec ged gee geg gen ger ges ggc ggd ggg ggn ggr ggs gnc gnd gne gnn gnr gns grc grd gre grg grn grr grs gsc gsd gse gsg gsn gsr gss ncc ncd nce ncg ncn ncr ncs ndc ndd nde ndg ndn ndr nds ne- nec ned nee neg nen ner nes ngc ngd nge ngg ngn ngs nnc nne nng nnn nns nrc nrd nre nrg nrn nrr nrs nsc nsd nse nsg nsn nsr nss rcc rcd rce rcg rcn rcr rcs rdc rdd rde rdg rdn rdr rds re- rec red ree reg ren rer res rgc rgd rge rgg rgn rgr rgs rnc rnd rng rnn rnr rns rrc rrd rrg rrn rrr rrs rsc rsd rse rsg rsn rsr rss scc scd sce scg scn scr scs sdc sdd sde sdg sdn sdr sds se- sec sed see seg sen ser ses sgc sgd sge sgg sgn sgr sgs snc snd sne sng snn snr sns sr- src srd sre srg srn srr srs ss- ssc ssd sse ssg ssn ssr sss