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82 2 82 3 82 4 82 5 82 6 82 7 82 8 82 9 83 0 83 1 83 2 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965

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