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:
public class A
{
	public static void main(String[] args)
	{
		int a = new java.util.Scanner(System.in).nextInt();
		System.out.print(a < 13 ? 1<<a : 8092l<<a-13);
	}
}