-er c-- ccc cce cch ccn ccr ccs ce- cec cee ceh cen cer ces ch- chc che chh chn chr chs cn- cnc cne cnh cnn cnr cns crc cre crh crn crr crs csc cse csh csn csr css ec- ecc ece ech ecn ecr ecs eec eee een eer ees ehc ehe ehh ehn ehr ehs en- enc ene enh enn enr ens erc ere erh ern err ers es- esc ese esh esn esr ess hcc hce hch hcn hcr hcs he- hec hee heh hen her hes hhc hhe hhh hhn hhr hhs hnc hne hnh hnn hns hr- hrc hre hrh hrn hrr hrs hsc hse hsh hsn hsr hss ncc nce nch ncn ncr ncs ne- nec nee neh nen ner nes nhc nhe nhh nhn nhr nhs nnc nne nnh nnn nns nrc nre nrn nrr nrs nsc nse nsh nsn nsr nss rcc rce rch rcn rcr rcs re- rec ree reh ren rer res rh- rhc rhe rhh rhn rhr rhs rnc rnh rnn rnr rns rrc rrh rrn rrr rrs rsc rse rsh rsn rsr rss scc sce sch scn scr scs se- sec see seh sen ser ses sh- shc she shh shn shr shs snc sne snn snr sns sr- src sre srh srn srr srs ss- ssc sse ssh ssn ssr sss