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.io.IOException;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) throws IOException {
        Scanner in = new Scanner(System.in);

        int a = in.nextInt();

        System.out.println(a % 2 == 0 ? 0 : 1);

        in.close();
    }
}