qopww popw oopwwt nopww mopw
1xow 0xowwt zxoww yxow xxowwt
c7nwwt b7nww a7nw 96nwwt 86nww
ngnww mgnw lgnwwt kgnww jgnw
ypmw xpmwwt wpmww vpmw upmwwt