#include <stdio.h>

int Fact( int n );

int main(void)
{
	int n;

	n = 5;
	printf("Factorial of \%d is \%d.\n", n, Fact(n));
	return 0;
}

int Fact( int n )
{
    if ( n == 1 )
	return 1;
    else
	return n * Fact(n-1);
}