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11 43 11 44 11 45 11 46 11 47 11 48 11 49 11 50 11 51 11 52 11 53 1931 1930 1929 1928 1927 1926 1925 1924 1923 1922

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