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21 51 1 21 51 2 21 51 3 21 51 4 21 51 5 21 51 6 21 51 7 21 51 8 21 51 9 21 52 0 21 52 1 21 52 2 21 52 3 21 52 4 21 52 5 21 52 6 47137 47136 47135 47134 47133 47132 47131 47130 47129 47128 47127 47126 47125 47124 47123

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