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15 00 15 01 15 02 15 03 15 04 15 05 15 06 15 07 15 08 15 09 15 10 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940

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