//This program demonstrates the ++ and -- operators.
#include <iostream>
using namespace std;

int main ()
{
	int num = 4;	//num starts out with 4.
	
	//Display the value in num.
	cout << "The variable num is " << num << endl;
	cout << "I will now increment num.\n\n";
	
	//Use postfix ++ to increment num.
	num++;
	cout << "Now the variable num is " << num << endl;
	cout << "I will increment num again.\n\n";
	
	//use prefix += to increment num.
	++num;
	cout << "Now the variable num is " << num << endl;
	cout << "I will increment num again.\n\n";
	
	//use postfix -- to decrement num.
	num--;
	cout << "Now the variable num is " << num << endl;
	cout << "I will decrement num again.\n\n";
	
	//use prefix -- to decrement num.
	--num;
	cout << "Now the variable num is " << num << endl;
	return 0;
}