Submission

Score: 100

User: nemuchannnUwU

Problemset: ISBN

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-15 13:55:40

#include<bits/stdc++.h>
using namespace std;
int main(){
	cin.tie(nullptr)->sync_with_stdio(0);
	int sum=0;
	for (int i=10;i>=2;i--){
		int n;
		cin >> n;
		sum+=n*i;
	}
	if (sum%11==0) cout << 0;
	else cout << 11-sum%11;
}