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17 8 17 9 18 0 18 1 18 2 18 3 18 4 18 5 18 6 18 7 18 8 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927

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