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 DaVinciPowers {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int a = s.nextInt();
        long result = (long) (Math.pow(2, a));

        if (a >= 13)
            result -= (long) (Math.pow(2, a - 13) * 100);

        System.out.println(result);
    }
}