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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 54 1 54 2 54 3 3880 3879 3878 3877 3876 3875 3874 3873 3872 3871 3870 3869 3868 3867 3866 3865 3864 3863 3862 3861 3860 3859

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