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53 52 8 53 52 9 53 53 0 53 53 1 53 53 2 53 53 3 53 53 4 53 53 5 53 53 6 53 53 7 53 53 8 53 53 9 53 54 0 53 54 1 53 54 2 53 54 3 53 54 4 53 54 5 53 54 6 53 54 7 53 54 8 53 54 9 53 55 0 15830 15829 15828 15827 15826 15825 15824 15823 15822 15821 15820 15819 15818 15817 15816 15815 15814 15813 15812 15811 15810 15809

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