

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


	}
}