0td7rz 1td7 2td7r 3td7rz 4td7
pke7 qke7r rke7rz ske7 tke7r
ebf7r fbf7rz gbf7 hbf7r ibf7rz
31f7rz 41f7 51f7r 61f7rz 71f7
ssg7 tsg7r usg7rz vsg7 wsg7r