绝密公式算单双

简介：On the north side of Dong'an Gate, one thousand meters away from the Forbidden City, there is a mysterious small courtyard with three entrances. Dongchang Fanzi is guarding the door with a knife. Five steps outside the main door, there is a striking plaque with the name Zhu Di, the founder of Ming Dynasty. The four characters Dong Jishi Factory are written in handwriting.