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61 30 9 61 31 0 61 31 1 61 31 2 61 31 3 61 31 4 61 31 5 61 31 6 61 31 7 61 31 8 61 31 9 61 32 0 61 32 1 61 32 2 61 32 3 61 32 4 61 32 5 61 32 6 61 32 7 61 32 8 61 32 9 61 33 0 61 33 1 1870 1869 1868 1867 1866 1865 1864 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