-er c-- ccc cce cch ccr ccu ce- cec cee ceh cer ceu ch- chc che chh chr chu crc cre crh crr cru cuc cue cuh cur cuu ec- ecc ece ech ecr ecu eec eee eer ehc ehe ehh ehr ehu erc ere erh err eru eu- euc eue eur hcc hce hch hcr he- hec hee heh her heu hhc hhe hhh hhr hhu hr- hrc hre hrh hrr hru huc hue huh hur huu rcc rce rch rcr rcu re- rec ree reh rer reu rh- rhc rhe rhh rhr rhu rrc rrh rrr rru ruc rue ruh rur ruu ucc uce uch ucr ucu uec uee ueh uer uhc uhe uhh uhr uhu ur- urc ure urr uru uuc uue uur uuu