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30 97 30 98 30 99 31 00 31 01 31 02 31 03 31 04 31 05 31 06 31 07 31 08 31 09 31 10 31 11 31 12 2767 2766 2765 2764 2763 2762 2761 2760 2759 2758 2757 2756 2755 2754 2753

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