

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
import java.util.Scanner;

public class a{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);

        int a =scan.nextInt();
        System.out.println(a%2);
    }   
}