I was solving Codeforces Round #658 (Div. 2) and decided to watch the virtual participation of JooDdae. When I opened the "Friends Standings" tab, I saw what his solved problems moved right for 1 task in the plate (he solved ABCD). 
I was solving Codeforces Round #658 (Div. 2) and decided to watch the virtual participation of JooDdae. When I opened the "Friends Standings" tab, I saw what his solved problems moved right for 1 task in the plate (he solved ABCD). 