// File: EsameD.java
// Time-stamp: "2003-03-25 12:45:53 calvanes"
// Scopo: esame del 25/03/2003 - compito D - domanda 3

public class EsameD {
  public static int g(int k) {
    if (k == 0)
      return 1;
    else
      return 2 * g(k-1);
  }

  public static void main(String[] args) {
    int n;
    n = g(3);
    System.out.println(n);
  }
}