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11 37 11 38 11 39 11 40 11 41 11 42 11 43 11 44 11 45 11 46 11 47 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882

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