-ey c-- ccc ccd cce cch cdc cdd cde cdh cdy ce- cec ced cee ceh cey ch- chc chd che chh chy cyc cyd cye dcc dcd dce ddc ddd dde ddh ddy de- dec ded dee deh dey dh- dhc dhd dhe dhh dy- dyc dyd dye dyy ec- ecc ecd ece ech ed- edc edd ede edh edy eec eed eee eey ehc ehd ehe ehh eyc eyd eye hcc hcd hce hch hcy hdc hdd hde hdh hdy he- hec hed hee heh hey hhc hhd hhe hhh hhy hy- hyc hyd hye hyh hyy ycc ycd yce ych ycy yde ydy yec yed yee yeh yey yhc yhe yyc yye yyy