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21 77 2 21 77 3 21 77 4 21 77 5 21 77 6 21 77 7 21 77 8 21 77 9 21 78 0 21 78 1 21 78 2 21 78 3 21 78 4 21 78 5 21 78 6 21 78 7 46896 46895 46894 46893 46892 46891 46890 46889 46888 46887 46886 46885 46884 46883 46882

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