呜呜呜 编译失败

卧槽????

#include <bits/stdc++.h>
using namespace std;

int main()
{
    string s;
    getline(cin, s);
    int sum = 0, cur = 1;
    for(int i = 0; i <= s.size() - 1; i++)
    {
        if(s[i] >= '0' && s[i] <= '9')
        {
            sum += (s[i] - '0') * cur;
            cur++;
        }
    }
    if(s[12] == (sum % 11))
    {
        printf("Right");
    }
    else
    {
        string s1;
        s1 = substr(0, 12);
        cout << s1;
        cout << sum % 11;
    }
    return 0;
}