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18 43 18 44 18 45 18 46 18 47 18 48 18 49 18 50 18 51 18 52 18 53 18 54 18 55 18 56 18 57 18 58 3877 3876 3875 3874 3873 3872 3871 3870 3869 3868 3867 3866 3865 3864 3863

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