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49 99 7 49 99 8 49 99 9 50 00 0 50 00 1 50 00 2 50 00 3 50 00 4 50 00 5 50 00 6 50 00 7 19803 19802 19801 19800 19799 19798 19797 19796 19795 19794

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