6len80 5len8 4len 3len80 2len8
hvdn8 gvdn fvdn80 evdn8 dvdn
s4cn r4cn80 q4cn8 p4cn o4cn80
3dcn80 2dcn8 1dcn 0dcn80 zdcn8
enbn8 dnbn cnbn80 bnbn8 anbn