-er c-- ccc ccd cce ccg cco ccr ccs ccv cdc cdd cde cdg cdo cdr cds cdv ce- cec ced cee ceg ceo cer ces cev cgc cgd cge cgg cgo cgr cgs cgv co- coc cod coe cog coo cor cos cov crc crd cre crg cro crr crs crv csc csd cse csg cso csr css csv cvc cvd cve cvg cvo cvr cvs cvv dcc dcd dce dcg dco dcr dcs dcv ddc ddd dde ddg ddo ddr dds de- dec ded dee deg deo der des dev dgc dgd dge dgg dgr dgs doc dod doe dog doo dor dos dov drc drd dre drg dro drr drs drv dsc dsd dse dsg dso dsr dss dsv dvc dvd dve dvg dvr dvs ec- ecc ecd ece ecg eco ecr ecs ecv ed- edc edd ede edg edo edr eds eec eed eee eeg eeo eer ees eev egc egd ege egg ego egr egs eo- eoc eod eoe eog eoo eor eos erc erd ere erg ero err ers erv es- esc esd ese esg eso esr ess esv evc evd eve evg evo evr evs evv g-d gcc gcd gce gcg gco gcr gcs gdc gdd gde gdo gdr gds gdv ge- gec ged gee geg geo ger ges gev ggc ggd ggg ggo ggr ggs ggv goc god goe gog goo gor gos gov grc grd gre grg gro grr grs grv gsc gsd gse gsg gso gsr gss gsv gvc gvd gve gvg gvo gvr gvs oc- occ ocd ocg oco ocr ocs ocv odc odd ode odg odo odr ods odv oec oed oee oeg oeo oer oes ogc ogd oge ogg ogo ogs oo- ooc ood oog ooo oor oos oov or- orc ord ore org oro orr ors orv os- osc osd ose osg oso osr oss osv ov- ovc ovd ove ovo ovs ovv rcc rcd rce rcg rco rcr rcs rcv rdc rdd rde rdg rdo rdr rds rdv re- rec red ree reg reo rer res rev rgc rgd rge rgg rgo rgr rgs rgv roc rod roe rog roo ror ros rov rrc rrd rrg rrr rrs rsc rsd rse rsg rso rsr rss rsv rvc rvd rve rvg rvo rvr rvs rvv scc scd sce scg sco scr scs scv sdc sdd sde sdg sdo sdr sds sdv se- sec sed see seg seo ser ses sev sgc sgd sge sgg sgo sgr sgs sgv soc sod soe sog soo sor sos sov sr- src srd sre srg sro srr srs srv ss- ssc ssd sse ssg sso ssr sss ssv svc svd sve svg svo svr svs svv v-e vcc vcd vce vco vcr vcs vdc vdd vde vdg vdo vdr vds vdv vec ved vee veg veo ver ves vgc vgg vgo vgr vgs voc vod voe vog voo vor vos vov vrc vrd vre vrg vrr vrs vsc vsd vse vsg vso vsr vss vsv vvc vvg vvo vvr vvs vvv