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47 9 48 0 48 1 48 2 48 3 48 4 48 5 48 6 48 7 48 8 48 9 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978

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