#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	while(cin>>a>>b){
		cout<<a+b<<endl;
	}
	return 0;
}

/**************************************************************
	Problem: 1001
	User: huangsheng
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2072 kb
****************************************************************/