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12 55 12 56 12 57 12 58 12 59 12 60 12 61 12 62 12 63 12 64 12 65 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935

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