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 Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a;
        while (true) {
            a = sc.nextInt();
            if (a % 2 == 0) {
                System.out.println("0");
                break;
            }
            else
            {
                System.out.println("1");
                break;
            }
        }
    }
}