#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
#ifndef ONLINE_JUDGE
freopen("test.in","r",stdin);
freopen("test.out","w",stdout);
#endif
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
int n;
cin>>n;
for(int i=1;i<=n;i++){
int a,b;
cin>>a>>b;
cout<<a+b<<'\n';
}
return 0;
}