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24 1 24 2 24 3 24 4 24 5 24 6 24 7 24 8 24 9 25 0 25 1 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977

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