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55 3 55 4 55 5 55 6 55 7 55 8 55 9 56 0 56 1 56 2 56 3 2109 2108 2107 2106 2105 2104 2103 2102 2101 2100

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