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12 87 12 88 12 89 12 90 12 91 12 92 12 93 12 94 12 95 12 96 12 97 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890

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