What do you mean that Yi Mao, Chen Bing, Ding Si and Wu Wu haven't applied for Xin You?

This is the branch chronology, which is divided into heavenly stems and earthly branches. In China's ancient calendar, A, B, C, D, E, Ji, G, Xin, Ren and Gui were called "Ten Days of Dry", with Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You and Qi. Ten branches and twelve branches are matched in turn to form sixty basic units, and they cooperate with each other in a fixed order to form branches and branches. Four years is the year of Jiazi, and then it is pushed down in turn, with a cycle of 60 years.