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56 8 56 9 57 0 57 1 57 2 57 3 57 4 57 5 57 6 57 7 57 8 57 9 58 0 58 1 58 2 58 3 58 4 58 5 58 6 58 7 58 8 58 9 59 0 872 871 870 869 868 867 866 865 864 863 862 861 860 859 858 857 856 855 854 853 852 851

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