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 QuirkyQuantifiers {
	
	private static final Scanner INPUT = new Scanner(System.in);

	public static void main(String[] args) {
		int num = INPUT.nextInt();
		if(num % 2 == 0) System.out.printf("0") ;
		else System.out.printf("1");
	}


}