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13 17 13 18 13 19 13 20 13 21 13 22 13 23 13 24 13 25 13 26 13 27 13 28 13 29 13 30 13 31 13 32 13 33 13 34 13 35 13 36 13 37 13 38 13 39 1907 1906 1905 1904 1903 1902 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889 1888 1887 1886

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