similar submissions for problem A round 882
https://codeforces.me/contest/1847/submission/212389735
https://codeforces.me/contest/1847/submission/212408825
https://codeforces.me/contest/1847/submission/212410748
https://codeforces.me/contest/1847/submission/212381933
these submissions are almost or 100% the same