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