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;

public class A952 {
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        int a=sc.nextInt();
        if (a%2==0)
        {
            System.out.println("0");
        }else {
            System.out.println("1");
        }
    }
}