

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
//package ltimemarch;
import java.util.Scanner;

public class Main {
	
public static void main(String[] args)
{
	Scanner scan = new Scanner(System.in);
	int n = scan.nextInt();
	if(n%2!=0)
		System.out.println(1);
	else
		System.out.println(0);
	scan.close();
}
}
