-er c-- ccc ccd cce ccg cco ccr ccs ccu cdc cdd cde cdg cdo cdr cds cdu ce- cec ced cee ceg ceo cer ces ceu cgc cgd cge cgg cgo cgr cgs cgu co- coc cod coe cog coo cor cos cou crc crd cre crg cro crr crs cru csc csd cse csg cso csr css csu cuc cud cue cug cuo cur cus cuu dcc dcd dce dcg dco dcr dcs dcu ddc ddd dde ddg ddo ddr dds ddu de- dec ded dee deg deo der des deu dgc dgd dge dgg dgr dgs dgu doc dod doe dog doo dor dos dou drc drd dre drg dro drr drs dru dsc dsd dse dsg dso dsr dss dsu duc dud due dug duo dur dus ec- ecc ecd ece ecg eco ecr ecs ecu ed- edc edd ede edg edo edr eds edu eec eed eee eeg eeo eer ees egc egd ege egg ego egr egs egu eo- eoc eod eoe eog eoo eor eos eou erc erd ere erg ero err ers eru es- esc esd ese esg eso esr ess esu eu- euc eud eue eug eur eus g-d gcc gcd gce gcg gco gcr gcs gcu gdc gdd gde gdo gdr gds gdu ge- gec ged gee geg geo ger ges geu ggc ggd ggg ggo ggr ggs ggu goc god goe gog goo gor gos gou grc grd gre grg gro grr grs gru gsc gsd gse gsg gso gsr gss gsu gu- guc gud gue gug guo gur gus guu oc- occ ocd ocg oco ocr ocs ocu odc odd ode odg odo odr ods odu oec oed oee oeg oeo oer oes ogc ogd oge ogg ogo ogs oo- ooc ood oog ooo oor oos or- orc ord ore org oro orr ors oru os- osc osd ose osg oso osr oss osu ou- ouc oud oue ouo our ous rcc rcd rce rcg rco rcr rcs rcu rdc rdd rde rdg rdo rdr rds rdu re- rec red ree reg reo rer res reu rgc rgd rge rgg rgo rgr rgs roc rod roe rog roo ror ros rou rrc rrd rrg rrr rrs rru rsc rsd rse rsg rso rsr rss rsu ruc rud rue rug ruo rur rus ruu scc scd sce scg sco scr scs scu sdc sdd sde sdg sdo sdr sds sdu se- sec sed see seg seo ser ses seu sgc sgd sge sgg sgo sgr sgs sgu soc sod soe sog soo sor sos sou sr- src srd sre srg sro srr srs ss- ssc ssd sse ssg sso ssr sss ssu suc sud sue sug suo sur sus suu ucc ucd uce ucg uco ucr ucs ucu udc udd ude udg udo udr uds udu uec ued uee ueg uer ues ugc uge ugg ugo ugr ugs ugu uoc uod uoe uog uoo uor uos ur- urc urd ure urg uro urr urs uru usc usd use usg uso usr uss usu uuc uue uug uur uus uuu