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53 2 53 3 53 4 53 5 53 6 53 7 53 8 53 9 54 0 54 1 54 2 1141 1140 1139 1138 1137 1136 1135 1134 1133 1132

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