According to the regulations, this is not allowed. You need to swipe your meal card, but you can actually go straight to the left channel. If someone asks you why you don't swipe your card, you can say that you forgot your meal card and nobody cares. If you meet a tricky administrator, at most, let others brush your meal card and let you in. It must be the best answer. I have studied all the management loopholes in Zhong Kai. What else do you want to know?