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19 76 19 77 19 78 19 79 19 80 19 81 19 82 19 83 19 84 19 85 19 86 3913 3912 3911 3910 3909 3908 3907 3906 3905 3904

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