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89 3 89 4 89 5 89 6 89 7 89 8 89 9 90 0 90 1 90 2 90 3 90 4 90 5 90 6 90 7 90 8 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952

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