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.*;

public class A {
	public static void main(String... args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();

		System.out.println(N % 2);
	}
}