I have been eager to enable coach mode because I want to share a freshman-contest of my school on the gym. Since I came up with this idea, I have tried to became a purple coder.

If you visit my profile, you may find that I have reach it after Codeforces Round 1004 (Div. 2). There was a funny fact that before the rating roll back, my rating was 1899. So after this contest, I have participated in Codeforces Round 1005 (Div. 2) and Educational Codeforces Round 174 (Rated for Div. 2). I have successfully lose 90 ratings in these contests.

After the roll back, my max rating became 1909 and I have became a candidate master. However, I can't enable the coach mode because my rating was lower than 1900 now.

Anyhow, I will try to achieve this goal again and share the contest with you. Thanks for Codeforces and You.