#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,b;
	
	while(1){
	cin>>a>>b;
		cout<<a+b<<endl;
	}


	return 0;
}

/**************************************************************
	Problem: 1001
	User: hbq
	Language: C
	Result: Compile Error
****************************************************************/