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12 22 12 23 12 24 12 25 12 26 12 27 12 28 12 29 12 30 12 31 12 32 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943

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