#include <iostream>

using namespace std;

int main()
{
	float x, y;
	float sum, difference, product, quotient;

	cout << "x = ";
	cin >> x;
	cout << "y = ";
	cin >> y;
  
	sum = x + y;
	difference = x - y;
	product = x * y;
	quotient = x / y;
  
	cout << "x + y = " << sum << endl;
	cout << "x - y = " << difference << endl;
	cout << "x * y = " << product << endl;
	cout << "x / y = " << quotient << endl;

	return 0;
}