// This program demonstrates the prefix and postfix
// modes of the increment and decrement operators.
#include <iostream>
using namespace std;

int main()
{
   int num = 4;
   
   cout << num << endl;   // Displays 4
   cout << num++ << endl; // Displays 4, then adds 1 to num
   cout << num << endl;   // Displays 5
   cout << ++num << endl; // Adds 1 to num, then displays 6
   cout << endl;          // Displays a blank line
   
   cout << num << endl;   // Displays 6
   cout << num-- << endl; // Displays 6, then subtracts 1 from num
   cout << num << endl;   // Displays 5
   cout << --num << endl; // Subtracts 1 from num, then displays 4
      
   return 0;
}