ModAdd

#include <iostream>
#include <cstdio>


int main()
{
    using namespace std;
    ios::sync_with_stdio(false);

    int x,y,s=0;
    cin >> x >> y;
    for (int n=10; n<1e9; n*=10) {
        long long xm=x%n * 10/n;
        long long ym=y%n * 10/n;
        s += ((xm + ym) % 10) * n/10;

    }
    cout << s;
    return 0;
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER