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36 65 36 66 36 67 36 68 36 69 36 70 36 71 36 72 36 73 36 74 36 75 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977

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