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31 01 2 31 01 3 31 01 4 31 01 5 31 01 6 31 01 7 31 01 8 31 01 9 31 02 0 31 02 1 31 02 2 31 02 3 31 02 4 31 02 5 31 02 6 31 02 7 38687 38686 38685 38684 38683 38682 38681 38680 38679 38678 38677 38676 38675 38674 38673

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