using System;

using System.Collections.Generic;

​

class Program

{

    static void Main()

    {

        var queue = new PriorityQueue<string, int>(new ReverseComparer<int>());

        queue.Enqueue("Red", 10);

        queue.Enqueue("Green", 20);

        queue.Enqueue("Yellow", 15);

        queue.Enqueue("Brown", 25);

        queue.Enqueue("Purple", 20);

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

        {

            Console.WriteLine($"{priority} -> {element}");

        }

    }

​

    class ReverseComparer<T> : IComparer<T>

    {

        public int Compare(T x, T y) => -Comparer<T>.Default.Compare(x, y);

    }

}