题解 | #多组_A+B_零尾模式#

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

int main()
{
    int a,b;
    while (scanf("%d %d",&a,&b)) 
    {
        if(a == 0 && b == 0) break;
        printf("%d\n",a + b);
       
    }
    return 0;
}