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_Numbers_Joke {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int[]jokNum = {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(jokNum[a-1]);
    }
}