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81 86 81 87 81 88 81 89 81 90 81 91 81 92 81 93 81 94 81 95 81 96 7160 7159 7158 7157 7156 7155 7154 7153 7152 7151

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