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21 48 2 21 48 3 21 48 4 21 48 5 21 48 6 21 48 7 21 48 8 21 48 9 21 49 0 21 49 1 21 49 2 21 49 3 21 49 4 21 49 5 21 49 6 21 49 7 47157 47156 47155 47154 47153 47152 47151 47150 47149 47148 47147 47146 47145 47144 47143

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