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13 92 13 93 13 94 13 95 13 96 13 97 13 98 13 99 14 00 14 01 14 02 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982

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