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 April {
    public static void main(String[] args){
        Scanner in=new Scanner(System.in);
        int a=in.nextInt();
        if(a%2!=0) System.out.println("1");
        else System.out.println("0");
    }
}