import java.util.*;

class Factorial

{

    public static void main (String[] args)

    {

        int fact=1;

        int n,i;

        Scanner s = new Scanner(System.in);

           System.out.print("Enter Number ");

           

           n = s.nextInt();

           for(i=1;i<=n;i++)

           {

               fact = fact*i;

           }

          System.out.println("Factorial of "+n+"is "+fact);

    }

}