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52 54 9 52 55 0 52 55 1 52 55 2 52 55 3 52 55 4 52 55 5 52 55 6 52 55 7 52 55 8 52 55 9 52 56 0 52 56 1 52 56 2 52 56 3 52 56 4 52 56 5 52 56 6 52 56 7 52 56 8 52 56 9 52 57 0 52 57 1 16840 16839 16838 16837 16836 16835 16834 16833 16832 16831 16830 16829 16828 16827 16826 16825 16824 16823 16822 16821 16820 16819

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