

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.*;
public class MyClass {
    public static void main(String args[]) {
      Scanner in = new Scanner(System.in);
      int n = in.nextInt();
      System.out.println(n%2);
      
      
    }
}
