

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 qq{
	private static Scanner scan = new Scanner(System.in);
	public static void main(String[] args){
		int a = scan.nextInt();
		System.out.println(a%2!=0?1:0);
	}
}