import java.util.Scanner;

public class Recursion
{
   public static void main (String[] args)
   {
      int i;
      Scanner scan = new Scanner(System.in);


      System.out.print("Enter an integer: ");
      i = scan.nextInt();
      System.out.println( "\nsum(" + i + ")  = " + sum(i) + "\n");
      System.out.println( "\nfactorial(" + i + ")  = " + factorial(i) + "\n");
   }

   public static int sum (int num)
   {
      int result;

      if (num == 1)
         result = 1;
      else
         result = num + sum(num - 1);

      return result;
    }

   public static int factorial(int num)
   {
      int result;

      if (num <= 1)
         result = 1;
      else
         result = num * factorial(num - 1);

      return result;
    }

}