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31 90 8 31 90 9 31 91 0 31 91 1 31 91 2 31 91 3 31 91 4 31 91 5 31 91 6 31 91 7 31 91 8 31 91 9 31 92 0 31 92 1 31 92 2 31 92 3 37913 37912 37911 37910 37909 37908 37907 37906 37905 37904 37903 37902 37901 37900 37899

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