

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 Problem1 {
	public static void main (String [] args){
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		if(n%2 == 1){
			System.out.println("1");
		}
		else{
			System.out.println("0");
		}
	}
}
