

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.*;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) throws IOException {
        Scanner in = new Scanner(System.in);
        if (in.nextShort()%2 == 0)
            System.out.println(0);
        else System.out.println(1);
    }
}
