duongthanhtungfrontend31102009

include <bits/stdc++.h>

using namespace std;

int main() { ios::syncwithstdio(false); cin.tie(nullptr);

int n;
cin >> n;
while (n--) {
    long long a, b;
    cin >> a >> b;
    cout << a + b << "\n";
}

return 0;

}