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Statement

 Goal

At an HxW rave, Bob wants to kiss as many girls as possible without his odds of catching monkeypox exceeding 40%. The chances of catching monkeypox from any given girl at position (x,y) are min(x, y) / (x^2 + y^2 + 1).
Input
Line 1: H W
Next H lines: The grid values (G indicates a girl), where (0,0) is the upper left corner.
Output
The maximum number of girls Bob can kiss.
Constraints
4 ≤ H,W ≤ 50
Example
Input
6 6
G....G
.G..G.
..GG..
..GG..
.G..G.
G....G
Output
8

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