-er c-- ccc ccd cce ccg cch ccr cdc cdd cde cdg cdh cdr ce- cec ced cee ceg ceh cer cgc cgd cge cgg cgh cgr ch- chc chd che chg chh chr crc crd cre crg crh crr dcc dcd dce dcg dcr ddc ddd dde ddg ddh ddr de- dec ded dee deg deh der dgc dgd dge dgg dgh dgr dh- dhc dhd dhe dhh dhr drc drd dre drg drr ec- ecc ecd ece ecg ech ecr ed- edc edd ede edg edh edr eec eed eee eeg eer egc egd ege egg egh egr ehc ehd ehe ehg ehh ehr erc erd ere erg erh err g-d gcc gcd gce gcg gch gcr gdc gdd gde gdh gdr ge- gec ged gee geg geh ger ggc ggd ggg ggh ggr ghc ghd ghe ghg ghh ghr grc grd gre grg grh grr hcc hcd hce hcg hch hcr hdc hdd hde hdg hdh hdr he- hec hed hee heg heh her hgc hge hgg hgh hgr hhc hhd hhe hhg hhh hhr hr- hrc hrd hre hrg hrh hrr rcc rcd rce rcg rch rcr rdc rdd rde rdg rdh rdr re- rec red ree reg reh rer rgc rgd rge rgg rgh rgr rh- rhc rhd rhe rhg rhh rhr rrc rrd rrg rrh rrr