import java.lang.Math; // headers MUST be above the first class
import java.net.URL;

// one class needs to have a main() method
public class HelloWorld
{
  // arguments are passed using the text field below this editor
  public static void main(String[] args)
  {
    try {
    System.out.print(new URL("https://x.com#@y.com").getHost());
    } catch (Exception e) {}
  }
}