-er c-- ccc cce cch ccr ccs ce- cec cee ceh cer ces ch- chc che chh chr chs crc cre crh crr crs csc cse csh csr css ec- ecc ece ech ecr ecs eec eee eer ees ehc ehe ehh ehr ehs erc ere erh err ers es- esc ese esh esr ess hcc hce hch hcr hcs he- hec hee heh her hes hhc hhe hhh hhr hhs hr- hrc hre hrh hrr hrs hsc hse hsh hsr hss rcc rce rch rcr rcs re- rec ree reh rer res rh- rhc rhe rhh rhr rhs rrc rrh rrr rrs rsc rse rsh rsr rss scc sce sch scr scs se- sec see seh ser ses sh- shc she shh shr shs sr- src sre srh srr srs ss- ssc sse ssh ssr sss