....o......................o....
...obo....................obo...
...ocbo..................oaco...
...oacbo................oacco...
.o.oacbbo..............oabcco.o.
obooabcbbo............oabcbcoobo
oaacbbccbbo..........oabccbbcaco
.oabccbcbco..........oabcbccbco.
..oabccccbbo........oabccccbco..
.oabbbcccbbbo......oabbcccbbbbo.
oacccbbcccbco......oabcccbbcccbo
.oabccccccbbbo....oabbccccccbco.
..ooabbbcccbco....oabcccbbbcoo..
....oooabbbbco..P.oabbbbcooo....
.......oooooo......oooooo.......