import java.util.*;
public class Main
{
public static int Factorial(int num)
{
if (num == 0)
{
return 1;
}
else
{
return num * Factorial(num - 1);
}
}
public static void main(String[] args)
{
System.out.println("Enter a number:");
int number = Integer.parseInt(new Scanner(System.in).nextLine());
System.out.println(Factorial(number));
System.out.println(Factorial(6));
}
}