Problem: 

Input

The input contains a single integer a (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples

Input

3


Output

8


Input

10


Output

1024

Solution (in JAVA):

Solution:
import java.util.Scanner;


/**
 *
 * @author user
 */
public class JavaApplication72 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
       Scanner in = new Scanner(System.in);
       int x =in.nextInt();
       if(x%2==0)
            System.out.println(0);
       else
            System.out.println(1);
    }
    
}