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 AprilA {
	public static int[] arr ={ 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};
	public static void main(String[] args) 	{
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		System.out.println(arr[N-1]);


	}



}