#include<iostream>

using namespace std;

int main(void)
{
    int a,b;
    
    while(true){
        cin>>a>>b;
        cout<<a+b<<endl;
    }
    return 0;
}
/**************************************************************
	Problem: 1001
	User: 231308061
	Language: C++
	Result: Output Limit Exceed
****************************************************************/