

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.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public class CodeForces
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(new BufferedReader(new InputStreamReader(System.in)));

		int n = input.nextInt();
		if (n % 2 == 0)
		{
			System.out.println(0);
		} else
		{
			System.out.println(1);
		}
	}
}
