题解 | #多组_A+B_零尾模式#

#include <iostream>
using namespace std;

int main() 
{
    int a, b;    
    while (cin >> a >> b) 
    {
        if(a == 0 && b == 0)
        {
            break;
        }
        cout << a + b << endl;
    }
    return 0;
}