using System;//1 пример за Опашка

using System.Collections.Generic;

public class QueueExample

{

    public static void Main()

    {

        Queue<int>numbersQueue = new Queue<int>();

        for(int i=0; i<10; i++)

        {

            numbersQueue.Enqueue(i);

        }

        while(numbersQueue.Count>0)

        {

            Console.WriteLine(numbersQueue.Dequeue());

        }

    }

}