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12 2 12 3 12 4 12 5 12 6 12 7 12 8 12 9 13 0 13 1 13 2 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940

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