#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b,i=100,c,n=100;
	for(;i=n;i++){
		cin>>a>>b;
		c=a+b;
		cout<<c;
		i-1;
	}
} 
/**************************************************************
	Problem: 1001
	User: huxuanchen
	Language: C++
	Result: Output Limit Exceed
****************************************************************/