poj2316

简单题

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;

string st, wheel;

int main()
{
    //freopen("t.txt", "r", stdin);
    getline(cin, wheel);
    while (getline(cin, st) && st != "")
    {
        for (unsigned i = 0; i < st.length(); i++)
            wheel[i] = ((wheel[i] - '0') + (st[i] - '0'))%10 + '0';
    }
    cout << wheel << endl;
    return 0;
}