Challenge 100U to 1000U No. 3.23, currently 242, highest 257 two days ago, ended up wasting 42U due to chaotic operations. Although it was wasted, after deep reflection and review at night, it was still valuable. I have just regained the 42U in the past two days, one month since recharging 68U on 2.21, currently tripling, keep up the good work.