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36 56 36 57 36 58 36 59 36 60 36 61 36 62 36 63 36 64 36 65 36 66 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976

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