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;

public class I {

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int a = Integer.parseInt(br.readLine());
		long ans = 0;
		if (a < 13) {
			ans = 1 << a;
		} else {
			ans = 8092L;
			for (int i = 13; i < a; i++) ans *= 2;
		}
		System.out.println(ans);
	}
}