Regarding contract copying, I just want to ask the experienced copy traders, if you lose, you don't lose money; if you win, there is a rebate. As long as the rebate is greater than your own principal, it's a profit. I don't understand the experienced contract copy traders; can you talk about the new journey? I mean, if you lose 1000u, converted to AI, that's five years of subscription. Can't you train an AI that can make money in five years?