#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	while (cin>>a>>b) {
		cout<<a+b<<endl;
	}
}
/**************************************************************
	Problem: 1001
	User: fandaohan
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2072 kb
****************************************************************/