

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.*;
import java.io.*;
public class QuirkyQuantifiers {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println(scan.nextInt() % 2);
    }
}