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 Prime {
	public static void main(String argsp[]) {
		Scanner scan = new Scanner(System.in);
		int i = scan.nextInt();
		if(i%2 == 0)
			System.out.print(0);
		else
			System.out.print(1);
	}
}