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14 98 14 99 15 00 15 01 15 02 15 03 15 04 15 05 15 06 15 07 15 08 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980

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