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12 90 12 91 12 92 12 93 12 94 12 95 12 96 12 97 12 98 12 99 13 00 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926

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