#include <bits/stdc++.h>
using namespace std;
inline void QAQ(int x)
{
if(x == 0) return;
QAQ(x-1);
}
int main() {
int a,b,p;
int n;
scanf("%d",&n);
for(long long i = 1; i <= (long long)1000; i ++)
QAQ(10000);
for(int i = n; i >= 1; i --)
{
scanf("%d%d",&a,&b);
printf("%d\n", a+b);
}
return 0;
}