

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 test1
{
    public static void main(String arg[])
    {
        Scanner s1 = new Scanner(System.in);
        if(s1.nextInt() % 2 == 0)
            System.out.println("0");
        else
            System.out.println("1");
    }
}