using System;

using System.Collections.Generic;

​

namespace Cities

{

    class Program

    {

        static void Main(string[] args)

        {

            var cities = new List<string>();

​

            cities.Add("Sofia");

            cities.Add("Ruse");

            cities.Add("Marten");

​

            for (int i = 0; i < cities.Count; i++)

            {

                Console.Write(cities[i]+", ");

            }

            Console.WriteLine();

            cities.Insert(1, "Varna");

            Console.WriteLine("Count cities: {0}",cities.Count);

​

            cities.Remove("Marten");

            cities.Insert(0, "Plovdiv");

            cities.RemoveAt(1);

​

            foreach (var el in cities)

                Console.Write(el + ", ");

            Console.WriteLine();

            Console.WriteLine(cities.Contains("Ruse"));

​

        }

    }

}

​