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 main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner s=new Scanner (System.in);
		int a=s.nextInt();
		if(a%2==0)
		{
			System.out.println("0");
		}
		else 
		{
			System.out.println("1");
		}
			
	}

}