using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {   

        var pq = new PriorityQueue<int, int>();

        pq.Enqueue(1, 10);

        pq.Enqueue(-10, 1);

        while (pq.TryDequeue(out var element, out var priority))

        {

            Console.WriteLine($"Element '{element}' with priority '{priority}' was dequeued");

        }

    }

}