Submission

Score: 100

User: tonkla

Problemset: ISBN

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-06 22:16:34

#include<iostream>
using namespace std;
int main(){
	int sum=0;
	for (int i =0;i<9;i++){
		int n ;
		cin >>n ;
		sum +=(10-i)*n;
		
	}
	if (sum%11==0){
		cout<<0;
	}
	else{
		cout<<11-sum%11;
	}
}