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12 51 12 52 12 53 12 54 12 55 12 56 12 57 12 58 12 59 12 60 12 61 1871 1870 1869 1868 1867 1866 1865 1864 1863 1862

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