#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int test;
  cin >> test;
  while (test--) {
    int a, b;
    cin >> a >> b;
    cout << a + b << endl;
  }
}
