

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 CForces1 {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int x = in.nextInt();
        if (x%2==0) {
            System.out.println("0");
        } else {
            System.out.println("1");
        }

    }
}
