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88 4 88 5 88 6 88 7 88 8 88 9 89 0 89 1 89 2 89 3 89 4 89 5 89 6 89 7 89 8 89 9 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939 1938

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