using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Random rand = new Random();

        var list = new List<string>(){"fcb-r1","fcb-r2"};

                Console.WriteLine(list.Count);

        int randomNumber = rand.Next(0, list.Count);

                        Console.WriteLine(randomNumber);

        Console.WriteLine(list[randomNumber]);

    }

}