#include <iostream>

using namespace std;

int main() {
	int a = 0, b = 0;
	cin >> a >> b;
	bool first_sign = a >= 0, second_sign = b >= 0; // true +; false -
	if (first_sign == second_sign) {
		cout << a + b << endl;
	}
	else {
		cout << -a << " " << -b << endl;
	}
	system("PAUSE");
	
}