-er -ey c-- ccc ccd cce cch ccr cdc cdd cde cdh cdr cdy ce- cec ced cee ceh cer cey ch- chc chd che chh chr chy crc crd cre crh crr cry cyc cyd cye cyr dcc dcd dce dcr ddc ddd dde ddh ddr ddy de- dec ded dee deh der dey dh- dhc dhd dhe dhh dhr drc drd dre drr dry dy- dyc dyd dye dyr dyy ec- ecc ecd ece ech ecr ed- edc edd ede edh edr edy eec eed eee eer eey ehc ehd ehe ehh ehr erc erd ere erh err ery eyc eyd eye eyr hcc hcd hce hch hcr hcy hdc hdd hde hdh hdr hdy he- hec hed hee heh her hey hhc hhd hhe hhh hhr hhy hr- hrc hrd hre hrh hrr hy- hyc hyd hye hyh hyr hyy rcc rcd rce rch rcr rdc rdd rde rdh rdr rdy re- rec red ree reh rer rey rh- rhc rhd rhe rhh rhr rrc rrd rrh rrr ry- ryc ryd rye ryr ryy ycc ycd yce ych ycy yde ydy yec yed yee yeh yer yey yhc yhe yrc yre yyc yye yyy