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){
		Scanner scan=new Scanner(System.in);
		long n=scan.nextLong();
		long ans=1;
		for(long i=1;i<=n;i++){
			ans=ans*2;
			if(i==13)
				ans-=100;
		}
		System.out.println(ans);
	}
}