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26 7 26 8 26 9 27 0 27 1 27 2 27 3 27 4 27 5 27 6 27 7 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955

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