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 Mlaupc {
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		
		int n = scan.nextInt();
		System.out.println(n%2==0?0:1);
		
	}
}