import java.util.Arrays;

class NonCapturing {
  public static void main(String... args) {
    run(() -> System.out.println("Hey!"));
  }
  private static void run(Runnable run) {
    run.run();
  }
}

class Capturing {
  public static void main(String... args) {
    run(() -> System.out.println("Hey! " + Arrays.toString(args)));
  }
  private static void run(Runnable run) {
    run.run();
  }
}