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