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39 6 39 7 39 8 39 9 40 0 40 1 40 2 40 3 40 4 40 5 40 6 1873 1872 1871 1870 1869 1868 1867 1866 1865 1864

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