Three months, when I was studying, I studied for three months. At first, I took a month's basic theory class, then I took Pilates for half a month, and then I recovered in the second half. Later, I took Li Hengmin's advanced courses, as well as sales and cycling classes. That's about it for a three-month class. At first, I thought time was hard. When I learned tens of thousands of basic theories, I felt that time passed quickly. Later, when I graduated, I felt that time was so fast, and I was a little reluctant.