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55 4 55 5 55 6 55 7 55 8 55 9 56 0 56 1 56 2 56 3 56 4 56 5 56 6 56 7 56 8 56 9 1863 1862 1861 1860 1859 1858 1857 1856 1855 1854 1853 1852 1851 1850 1849

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