

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 sol {
    public static void main(String args[]) {
        Scanner console = new Scanner(System.in);
        long x = console.nextLong();
        System.out.println(x%2);
    }
}