#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m;
    while(cin>>n>>m){
        cout<<n+m<<endl;
    }
}
/**************************************************************
	Problem: 1001
	User: chenmingyu
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/