wsqhk vsqh usqhkb tsqhk ssqh
71ph 61phkb 51phk 41ph 31phkb
ibphkb hbphk gbph fbphkb ebphk
tkohk skoh rkohkb qkohk pkoh
4tnh 3tnhkb 2tnhk 1tnh 0tnhkb