..............o....o..............
.............obo..obo.............
.........o...obo..obo...o.........
........obo.obco.obco..obo........
........obo.obcboobcbo.obo........
.......obco.obcbbbbcbooaco........
....o..obcbobbcaabbcbbobcbo.......
...obo.obbbbbbbaabbcbbbbcbo..o....
...oboobbbaababaaabcabbbcbo.obo...
..obcoobabaaaabaaaabaabbcbcoobo...
..obbabbabaaaabaaaabaabbcbbobcbo..
..obcbbaabaaaabaaaacaabbcbbbbcbo..
..obcbbbabaaaabaaaacbbbbcbbbbcbo..
..obcbbbabaaabcaaabcbbbbcbbbbcco..
..obcbbbbbaabbcbbbbcbbbbcbbbbcco..
..obcbbbbcabbbcbbbbcbbbbcbbbccco..
..obcbbbbcbbbbcbbbbcbbbbcbbcccco..
...ocbbbbcbbbbcbbbbcbbbbcbccccco..
....obbbbcbbbbcbbbbcbbbbcccccco...
....obbbbcbbbbcbbcccbbccccccco....
.....obbbcbbbbccccccccccccccco....
.....obbccccccccPccccccccccco.....
......obccccccccccccccccccco......
.......occccccccccccccccccco......