-er c-- ccc cce ccg cch ccr ccs ce- cec cee ceg ceh cer ces cgc cge cgg cgh cgr cgs ch- chc che chg chh chr chs crc cre crg crh crr crs csc cse csg csh csr css ec- ecc ece ecg ech ecr ecs eec eee eeg eer ees egc ege egg egh egr egs ehc ehe ehg ehh ehr ehs erc ere erg erh err ers es- esc ese esg esh esr ess gcc gce gcg gch gcr gcs ge- gec gee geg geh ger ges ggc ggg ggh ggr ggs ghc ghe ghg ghh ghr ghs grc gre grg grh grr grs gsc gse gsg gsr gss hcc hce hcg hch hcr hcs he- hec hee heg heh her hes hgc hge hgg hgh hgr hgs hhc hhe hhg hhh hhr hhs hr- hrc hre hrg hrh hrr hrs hsc hse hsg hsh hsr hss rcc rce rcg rch rcr rcs re- rec ree reg reh rer res rgc rge rgg rgh rgr rgs rh- rhc rhe rhg rhh rhr rhs rrc rrg rrh rrr rrs rsc rse rsg rsh rsr rss scc sce scg sch scr scs se- sec see seg seh ser ses sgc sge sgg sgh sgr sgs sh- shc she shg shh shr shs sr- src sre srg srh srr srs ss- ssc sse ssg ssh ssr sss