.............oooooo.............
............obbbbbbo............
...........obbbbbbbbo...........
......ooooobbbbbbbbccooooo......
.....oabbbobbbbbbccccobbbbo.....
....oaaaabobbbcccccccoaaabbo....
...obaaaabboccccccccoaaaaabbo...
...obbaabbboccooooccobaaabbco...
...obaabbbbocoxyyyocobaabbbbo...
..obbabbbbbcoxxxxyyobbbbbbbcco..
..obbbbbooooyxxxxyyyoooobbbcco..
...obbbobbboyyxxyyyzobbbobcco...
...obboaaaaoyyyyyyzzoabbbocco...
.o..oobaaaaaoyyyyzzoaaabbboo....
oyo..obbaaaabozzzzoaabbbbco.....
.oyooobbabbbbbooooaabbbbbcoooo..
.oyyyobbbbbbbbbobbbbbbbcccoyyyo.
..oyyyobbbbbbbcobbbbbbcccoyyyyo.
..oyyyyobccccccobbbbccccoxxyyo..
...ozyyyoccccccoobcccccoyyyyyo..
...oyzzzzooooooxyooooooyyyzzo...
....ozzzzzzzzzoxyoyyyyyyyzzo....
.....ozzzzzzzzoxyoyyyyyyzzo.....
......ozzzzoooyyPzooyzzzzo......
.......oooo..oyyyzo.ooooo.......
.............oyyzzo.............
