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 A
{
    public static void main(String args[])
    {
        Scanner scanner=new Scanner(System.in);
        int n=scanner.nextInt();
        if(n%2==0)
        {
            System.out.print(0);
        }
        else 
        {
            System.out.print(1);
        }
    }
}