

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.Scanner;

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