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61 0 61 1 61 2 61 3 61 4 61 5 61 6 61 7 61 8 61 9 62 0 62 1 62 2 62 3 62 4 62 5 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924

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