// The function F is a recursive factorial function
// that reports when it starts and when it returns.


#include	<iostream>

int F( int N );

int main()
{
	int m = F(4);

	cout << m << endl;

	return( 0 );
}

int F( int N )
{
	cout << "Starting F: " << N << endl;

	if( N == 1 )
	{
		cout << "Departing F: " << N << ", 1" << endl;
		return( 1 );
	}
	else
	{
		int value = N * F(N-1);
		cout << "Departing F: " << N << ", " << value << endl;
		return( value );
	}
}