#include<bits/stdc++.h> using namespace std; int a[1000000],b[1000000],c[1000000]; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]>>b[i]; c[i]=a[i]+b[i]; } for(int j=1;j<=n;j++) cout<<c[j]<<endl; return 0; }