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 QuirkyQuant {
	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);
		System.out.println(in.nextInt() % 2);
		in.close();
	}
}