String Array in Random Quote using C#

using System;
using System.Collections.Generic;
 
public class GenericSample
{
	public static void Main(string[] args)
	{
		List<string> list = new List<string>();
		list.Add("First string");
		list.Add("Second string");
		list.Add("Third string");
		list.Add("Fourth string");
		for(int n = 0; n < list.Count; n++)
		{
			Console.WriteLine(list[n]);
		}
	}
}

using System;
using System.Collections.Generic;
 
public class RandomQuotes
{
	static void CreateQuotes(List<string> quotes)
	{
		quotes.Add("I Hate Drugs!!!@Weed");
		quotes.Add("Long if its hot, short if its cold...@Popstickle");
		quotes.Add("John 3:16@Verse");
		quotes.Add("Good Bye!!!@Welcome");
		quotes.Add("HAHAHA :P !!!@Bleee");
	}
 
	static void PrintQuote(string quote)
	{
    	string[] substring = quote.Split('@');
		Console.WriteLine(substring[0]);
    	Console.WriteLine("-" + substring[1]);
	}
 
	static string GetRandomQuote(List<string> quotes)
	{
		int n = new Random().Next(0, quotes.Count);
		return(quotes[n]);
	}
 
	public static void Main(string[] args)
	{
		List<string> list = new List<string>();
		CreateQuotes(list);
		string myRandomQuote = GetRandomQuote(list);
		if(args.Length == 0)
		{
			Console.WriteLine("Error Argument:\n * All\n * Random\n * Search");
			return;
		}
		if(args[0] == "random")
		{
			PrintQuote(myRandomQuote);
		}
		else if(args[0] == "all")
		{
			int x = 0;
			for(int n = list.Count; n > 0; n--)
			{
				PrintQuote(list[x]);
				x++;
			}
		}
	}
}