Contest1321/A.cpp

//
// Created by jal on 2019-04-01.
//
#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    while(cin >> a >> b){
        if(a == 0 && b == 0)break;
        int c = (a+b)%7;
        if(c==0)c=7;
        cout << c<<endl;
    }
}