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.io.BufferedReader;
import java.io.InputStreamReader;

/**
 * <a href="http://codeforces.com/contest/952/problem/A">952A</a>
 */
public class _952A {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        int i = Integer.valueOf(reader.readLine());
        if (i % 2 == 0) {
            System.out.println(0);
        } else {
            System.out.println(1);
        }
    }
}