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31 77 9 31 78 0 31 78 1 31 78 2 31 78 3 31 78 4 31 78 5 31 78 6 31 78 7 31 78 8 31 78 9 31 79 0 31 79 1 31 79 2 31 79 3 31 79 4 31 79 5 31 79 6 31 79 7 31 79 8 31 79 9 31 80 0 31 80 1 38000 37999 37998 37997 37996 37995 37994 37993 37992 37991 37990 37989 37988 37987 37986 37985 37984 37983 37982 37981 37980 37979

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