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18 57 5 18 57 6 18 57 7 18 57 8 18 57 9 18 58 0 18 58 1 18 58 2 18 58 3 18 58 4 18 58 5 50144 50143 50142 50141 50140 50139 50138 50137 50136 50135

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid