-er c-- ccc cce cch ccm cco ccr ce- cec cee ceh cem ceo cer ch- chc che chh chm cho chr cmc cme cmh cmm cmo cmr co- coc coe coh com coo cor crc cre crh crm cro crr ec- ecc ece ech ecm eco ecr eec eee eem eeo eer ehc ehe ehh ehm eho ehr em- emc eme emh emm emo emr eo- eoc eoe eoh eom eoo eor erc ere erh erm ero err hcc hce hch hcm hco hcr he- hec hee heh hem heo her hhc hhe hhh hhm hho hhr hmc hme hmh hmm hmo hmr hoc hoe hoh hom hoo hor hr- hrc hre hrh hrm hro hrr m-o m-r mc- mcc mce mch mcm mco mcr mec mee meh mem meo mer mhc mhh mhm mho mhr mmc mme mmh mmm mmo mmr moc moe moh mom moo mor mrc mre mrh mrm mro mrr oc- occ och ocm oco ocr oec oee oeh oem oeo oer ohc ohe ohh ohm oho ohr om- omc ome omh omm omo omr oo- ooc ooh oom ooo oor or- orc ore orh orm oro orr rcc rce rch rcm rco rcr re- rec ree reh rem reo rer rh- rhc rhe rhh rhm rho rhr rmc rme rmh rmm rmo rmr roc roe roh rom roo ror rrc rrh rrm rrr