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
{
	public static void main(String[] args)
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		System.out.println(n < 13 ? 1l << n : (1l << 13)-100 << n-13);
	}
}