USER: https://codeforces.com/contest/1989/problem/D

BOT: Thanks! Now could you provide a link to the editorial.



USER: https://codeforces.com/blog/entry/130937

BOT: There was something wrong with the link. Could you paste it again?



USER: https://codeforces.com/blog/entry/130937

BOT: There was something wrong with the link. Could you paste it again?