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19 98 19 99 20 00 20 01 20 02 20 03 20 04 20 05 20 06 20 07 20 08 13677 13676 13675 13674 13673 13672 13671 13670 13669 13668

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