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 DaVinci {

    static Scanner in;
    static long N;

    public static void main(String[] args) {
        in = new Scanner(System.in);
        N = in.nextLong();
        if (N > 13) {
            System.out.println((long) Math.pow(2, N) - (long) Math.pow(2, (N - 13)) * 100);
        } else if (N == 13) {
            System.out.println((long) Math.pow(2, N) - 100);
        } else {
            System.out.println((long) Math.pow(2, N));
        }
    }
}