#include <iostream>
#include <cstdlib>
using namespace std;

int main()
{
	int x {10};
	int y {20};

	cout << "x == " << x << "\n"
		<< "y == " << y << "\n\n";

	//Swap the values of x and y.
	int temp {x};  //Save a copy of the value of x.
	x = y;
	y = temp;

	//Demonstrate that the values of x and y have been swapped.
	cout << "x == " << x << "\n"
		<< "y == " << y << "\n";

	return EXIT_SUCCESS;
}