

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 Main {

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