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56 78 9 56 79 0 56 79 1 56 79 2 56 79 3 56 79 4 56 79 5 56 79 6 56 79 7 56 79 8 56 79 9 56 80 0 56 80 1 56 80 2 56 80 3 56 80 4 56 80 5 56 80 6 56 80 7 56 80 8 56 80 9 56 81 0 56 81 1 11830 11829 11828 11827 11826 11825 11824 11823 11822 11821 11820 11819 11818 11817 11816 11815 11814 11813 11812 11811 11810 11809

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