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10 89 10 90 10 91 10 92 10 93 10 94 10 95 10 96 10 97 10 98 10 99 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931

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