import java.util.NoSuchElementException;

public class MyQueue {
  private long[] items = new long[16];

  private int head;
  private int tail;

  public boolean isEmpty() { return head == tail; }

    // true if the first element of the queue is greater than specified number
  public boolean firstIsGreaterThan(int x) {
      if (isEmpty()) return false;
      if (isEmpty())
        throw new NoSuchElementException("Queue is empty");
      return items[head] > x;
  }

  // other methods
}