5ztkr 4ztk 3ztkrp 2ztkr 1ztk

g9sk f9skrp e9skr d9sk c9skrp

riskrp qiskr pisk oiskrp niskr

2rrkr 1rrk 0rrkrp zrrkr yrrk

d1qk c1qkrp b1qkr a1qk 90qkrp