

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.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Contest1 {
    Contest1() throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        System.out.println(a%2);
    }
    public static void main(String args[]) throws FileNotFoundException {
        new Contest1();
    }
}
