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14 57 14 58 14 59 14 60 14 61 14 62 14 63 14 64 14 65 14 66 14 67 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990

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