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26 4 26 5 26 6 26 7 26 8 26 9 27 0 27 1 27 2 27 3 27 4 27 5 27 6 27 7 27 8 27 9 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941

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