

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