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 Main {

   
    public static void main(String[] args) {
      Scanner sc=new Scanner(System.in);
      int num=sc.nextInt();
      if(num>=10 && num<=999){
          if(num%2==0){
              System.out.println("0");
          }
          else{
              System.out.println("1");
          }
      }
    }

}