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12 34 12 35 12 36 12 37 12 38 12 39 12 40 12 41 12 42 12 43 12 44 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882

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