#include<iostream.h>

void zap  ( int& number );
void swap ( int& first, int& second );

void main ()
{
	int apple = 7;
	int pear  = 8;

	cout << "Before swap, the numbers are : " << apple << " and " << pear << endl;
	swap(apple, pear);
	cout << "After swap, the numbers are  : " << apple << " and " << pear << endl;
}

void swap ( int& first, int& second )
{
	int temp;

	cout << "    1. Inside swap, the numbers are : " << first << " and " << second << endl;

	temp   = second;
	second = first;
	first  = temp;

	cout << "    2. Inside swap, the numbers are : " << first << " and " << second << endl;

}

void zap ( int& something )
{
	something = something * 3;
}