

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 Test {


  public static void main(String args[]) {

    Scanner in = new Scanner(System.in);
    int n = in.nextInt();
    System.out.println(sovle(n));
    }

  private static int sovle(int n) {
    return n % 2;
  }
  
}