

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