

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