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

/**************************************************************
	Problem: 1001
	User: linweilun
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/