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81 77 81 78 81 79 81 80 81 81 81 82 81 83 81 84 81 85 81 86 81 87 7265 7264 7263 7262 7261 7260 7259 7258 7257 7256

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