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51 8 51 9 52 0 52 1 52 2 52 3 52 4 52 5 52 6 52 7 52 8 52 9 53 0 53 1 53 2 53 3 53 4 53 5 53 6 53 7 53 8 53 9 54 0 878 877 876 875 874 873 872 871 870 869 868 867 866 865 864 863 862 861 860 859 858 857

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