We used to be one of the best in our dormitory, calling ourselves a neat freak. In her opinion, what a proud thing it is. The problem is that she only has her own things, and then what she doesn't want is thrown all over the dormitory, and she won't let us throw it! In our opinion, when she is forced to clean by us, it is really better not to clean, so dirty, and sweep wherever there is paper and garbage. Is there such sweeping?