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83 2 83 3 83 4 83 5 83 6 83 7 83 8 83 9 84 0 84 1 84 2 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948

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