

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.io.*;
public class A
{
  public static void main(String args[]) throws IOException
  {
      BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
      
      int a;
      
      a=Integer.parseInt(br.readLine());
      
      System.out.println(a%2);
  }
}