

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.*;
public class temp
{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        int n;
        n=in.nextInt();
       System.out.print((n%2));
    }
}