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80 5 80 6 80 7 80 8 80 9 81 0 81 1 81 2 81 3 81 4 81 5 81 6 81 7 81 8 81 9 82 0 1846 1845 1844 1843 1842 1841 1840 1839 1838 1837 1836 1835 1834 1833 1832

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