using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var arr = new string[3];

        arr[0] = "apple";

        arr[1] = "banana";

        arr[2] = "cherry";

        var list = new List<string>();

        list.Add("apple");

        list.Add("banana");

        list.Add("cherry");

        // LINQ handles both

        Console.WriteLine(arr.First());

        Console.WriteLine(list.First());

        // Casting both doens't hurt anything

        Console.WriteLine(new List<string>(arr).Last());

        Console.WriteLine(new List<string>(list).Last());

    }

}