#include <iostream>
using namespace std;
 
int main() {
    int a, b;
    while (cin >> a >> b) {
        cout << a + b << endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1001
	User: huxuanchen
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/