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41 8 41 9 42 0 42 1 42 2 42 3 42 4 42 5 42 6 42 7 42 8 1872 1871 1870 1869 1868 1867 1866 1865 1864 1863

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