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79 2 79 3 79 4 79 5 79 6 79 7 79 8 79 9 80 0 80 1 80 2 80 3 80 4 80 5 80 6 80 7 13917 13916 13915 13914 13913 13912 13911 13910 13909 13908 13907 13906 13905 13904 13903

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