#include <iostream>
using namespace std;
int main(void)
{
int t;
int a, b;
int i = 0;
cin >> t;
int* arr = new int[t];
for (i = 0; i < t; i++)
{
cin >> a >> b;
arr[i] = a + b;
}
for (i = 0; i < t; i++)
{
cout << arr[i] << endl;
}
delete[] arr;
return 0;
}