

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 Main {
	
	public static void main (String [] args){
		Scanner sc=new Scanner(System.in);
		
		int n = sc.nextInt();
		System.out.println(n % 2);
	}
}
