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31 89 8 31 89 9 31 90 0 31 90 1 31 90 2 31 90 3 31 90 4 31 90 5 31 90 6 31 90 7 31 90 8 37887 37886 37885 37884 37883 37882 37881 37880 37879 37878

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