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21 87 9 21 88 0 21 88 1 21 88 2 21 88 3 21 88 4 21 88 5 21 88 6 21 88 7 21 88 8 21 88 9 21 89 0 21 89 1 21 89 2 21 89 3 21 89 4 21 89 5 21 89 6 21 89 7 21 89 8 21 89 9 21 90 0 21 90 1 46840 46839 46838 46837 46836 46835 46834 46833 46832 46831 46830 46829 46828 46827 46826 46825 46824 46823 46822 46821 46820 46819

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