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78 7 78 8 78 9 79 0 79 1 79 2 79 3 79 4 79 5 79 6 79 7 79 8 79 9 80 0 80 1 80 2 1942 1941 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928

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