#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main()
{
	int a, b;
	string str, str1;
	vector<string> split_str;

	getline(cin, str);

	int len = str.size();

	for (int i = 0; i < len;i++) {
		if (str[i] == ' ') {
			split_str.push_back(str1);
			str1 = "";
		}
		else {
			str1 += str[i];
		}
	}
	split_str.push_back(str1);
	
	for (int i = 0; i < split_str.size();i += 2) {
		a = stoi(split_str[i]);
		b = stoi(split_str[i+1]);

		cout << a + b << endl;
	}
}