#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    while(cin >> a >> b)
        cout << a+b << endl;
}
/**************************************************************
	Problem: 1001
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/