-er c-- ccc ccd cce cch ccn ccr cdc cdd cde cdh cdn cdr ce- cec ced cee ceh cen cer ch- chc chd che chh chn chr cn- cnc cnd cne cnh cnn cnr crc crd cre crh crn crr dcc dcd dce dcn dcr ddc ddd dde ddh ddn ddr de- dec ded dee deh den der dh- dhc dhd dhe dhh dhr dnc dnd dne dnh dnn dnr drc drd dre drn drr ec- ecc ecd ece ech ecn ecr ed- edc edd ede edh edn edr eec eed eee een eer ehc ehd ehe ehh ehn ehr en- enc end ene enh enn enr erc erd ere erh ern err hcc hcd hce hch hcn hcr hdc hdd hde hdh hdn hdr he- hec hed hee heh hen her hhc hhd hhe hhh hhn hhr hnc hnd hne hnh hnn hr- hrc hrd hre hrh hrn hrr ncc ncd nce nch ncn ncr ndc ndd nde ndh ndn ndr ne- nec ned nee neh nen ner nhc nhd nhe nhh nhn nhr nnc nne nnh nnn nrc nrd nre nrn nrr rcc rcd rce rch rcn rcr rdc rdd rde rdh rdn rdr re- rec red ree reh ren rer rh- rhc rhd rhe rhh rhn rhr rnc rnd rnh rnn rnr rrc rrd rrh rrn rrr