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 a {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);

		int num = in.nextInt();

		int[] nums = { 4, 22, 27, 58, 85, 94, 121, 166, 202, 265, 274, 319, 346, 355, 378, 382, 391, 438, 454, 483, 517,
				526, 535, 562, 576, 588, 627, 634, 636, 645 };

		System.out.println(nums[num - 1]);

		in.close();
	}
}