-er c-- ccc cce ccg cco ccr ccs ccu ccv ce- cec cee ceg ceo cer ces ceu cev cgc cge cgg cgo cgr cgs cgu cgv co- coc coe cog coo cor cos cou cov crc cre crg cro crr crs cru crv csc cse csg cso csr css csu csv cuc cue cug cuo cur cus cuu cuv cvc cve cvg cvo cvr cvs cvu cvv ec- ecc ece ecg eco ecr ecs ecu ecv eec eee eeg eeo eer ees eev egc ege egg ego egr egs egu eo- eoc eoe eog eoo eor eos eou erc ere erg ero err ers eru erv es- esc ese esg eso esr ess esu esv eu- euc eue eug eur eus euv evc eve evg evo evr evs evv gcc gce gcg gco gcr gcs gcu ge- gec gee geg geo ger ges geu gev ggc ggg ggo ggr ggs ggu ggv goc goe gog goo gor gos gou gov grc gre grg gro grr grs gru grv gsc gse gsg gso gsr gss gsu gsv gu- guc gue gug guo gur gus guu guv gvc gve gvg gvo gvr gvs gvu oc- occ ocg oco ocr ocs ocu ocv oec oee oeg oeo oer oes ogc oge ogg ogo ogs oo- ooc oog ooo oor oos oov or- orc ore org oro orr ors oru orv os- osc ose osg oso osr oss osu osv ou- ouc oue ouo our ous ov- ovc ove ovo ovs ovv rcc rce rcg rco rcr rcs rcu rcv re- rec ree reg reo rer res reu rev rgc rge rgg rgo rgr rgs rgv roc roe rog roo ror ros rou rov rrc rrg rrr rrs rru rsc rse rsg rso rsr rss rsu rsv ruc rue rug ruo rur rus ruu ruv rvc rve rvg rvo rvr rvs rvu rvv scc sce scg sco scr scs scu scv se- sec see seg seo ser ses seu sev sgc sge sgg sgo sgr sgs sgu sgv soc soe sog soo sor sos sou sov sr- src sre srg sro srr srs srv ss- ssc sse ssg sso ssr sss ssu ssv suc sue sug suo sur sus suu suv svc sve svg svo svr svs svu svv ucc uce ucg uco ucr ucs ucu ucv uec uee ueg uer ues ugc uge ugg ugo ugr ugs ugu uoc uoe uog uoo uor uos ur- urc ure urg uro urr urs uru usc use usg uso usr uss usu usv uuc uue uug uur uus uuu uvc uve uvo uvs uvu uvv v-e vcc vce vco vcr vcs vcu vec vee veg veo ver ves veu vgc vgg vgo vgr vgs vgu voc voe vog voo vor vos vou vov vrc vre vrg vrr vrs vru vsc vse vsg vso vsr vss vsu vsv vue vug vur vus vuv vvc vvg vvo vvr vvs vvv