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12 99 13 00 13 01 13 02 13 03 13 04 13 05 13 06 13 07 13 08 13 09 1924 1923 1922 1921 1920 1919 1918 1917 1916 1915

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