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31 89 7 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 37912 37911 37910 37909 37908 37907 37906 37905 37904 37903

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