

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