2xyth 1xyt 0xyth2 zxyth yxyt

d7xt c7xth2 b7xth a7xt 96xth2

ogxth2 ngxth mgxt lgxth2 kgxth

zpwth ypwt xpwth2 wpwth vpwt

azvt 9yvth2 8yvth 7yvt 6yvth2