#include <iostream>
using namespace std;
int main()
{
int n;
cin>>n;
int a, b;
while(n--)
{
cin>>a>>b;
cout<<a+b<<endl;
}
}
#include <iostream>
using namespace std;
int main()
{
int n;
cin>>n;
int a, b;
while(n--)
{
cin>>a>>b;
cout<<a+b<<endl;
}
}