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14 30 14 31 14 32 14 33 14 34 14 35 14 36 14 37 14 38 14 39 14 40 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982

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