I am now in Jiaxiang Senior One. I remember that when I was admitted to Jiaxiang four years ago, mathematics had just reached the admission line. Fortunately, I registered faster and got in. I didn't learn olympiad in primary school. I don't think secondary school students who have received special training in this field have much problem. Good luck. In addition, Jiaxiang's junior high school is really dead, and his senior high school is very loose. I hope these are useful to you.