rifvzr qifvz pifv oifvzr nifvz

2revz 1rev 0revzr zrevz yrev

d1dv c1dvzr b1dvz a1dv 90dvzr

oadvzr nadvz madv ladvzr kadvz

zjcvz yjcv xjcvzr wjcvz vjcv