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.ArrayList;
import java.util.Scanner;
import java.lang.StringBuilder;
import java.util.Arrays;
import java.util.Stack;
import java.util.TreeMap;
public class Test11   {  
    public static void main(String[] Args)   {
        Scanner sc = new Scanner(System.in);
       int a = sc.nextInt();
       System.out.println(a % 2);

   }
}