Li Zheng was kicked out of the bookstore in Chang'an because he was too stupid. Many people thought he was an abnormal person. When he solved the nine-chapter numerology and broke the battle situation in Yinshan, everyone in Chang'an was looking for him... Poetry Li Zheng became famous in Chang'an for literary, mathematical and medical skills. The five surnames solicited, the emperor invited, and the prince wooed. At this moment, Li Zheng was hiding from the world under the eyes of everyone. ...... Fang Xuanling: Li Zheng, court The situation in China is serious, please come out of the mountain. Li Chunfeng: Li Zheng, I sent you the picture of pushing the back, please come out of the mountain. Cheng Yaojin: Li Zheng, the Turks and Tubo are calling again, please come out of the mountain quickly. Li Shimin: Li Zheng, My Great Tang seems to be dying, please get out of the mountain quickly... Li Zheng said calmly: Don't make noise! ​​My railway is about to be built and repaired.