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 HelloWorld{

     public static void main(String []args){
        //System.out.println("Hello World");
        int n,i,j;
        Scanner sc=new Scanner(System.in);
        n=sc.nextInt();
        if(n%2==0){
             System.out.println("0");
        }
        else
        {
             System.out.println("1");
        }
       
        
     }      
}