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.math.BigDecimal;
import java.util.Scanner;

public class problem656A {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		double t = sc.nextDouble();
		BigDecimal tmp = new BigDecimal(Math.pow(2,t));
		if(t>12){
			double v = Math.pow(2, t-13)*100;
			tmp = new BigDecimal(tmp.doubleValue()-v);
		}
		System.out.println(tmp);
	}

}