Short Words Sorted - Arrays and LINQ

using System;
using System.Linq;
using System.Collections.Generic;

public class Program
{
	public static void Main()
	{
		string input = Console.ReadLine().ToLower();

		char[] delimeters = new char[] {' ','.',',',':',';','(',')','[',']','"','\'','\\','/','!','?'};
		string[] tokens = input.Split(delimeters, StringSplitOptions.RemoveEmptyEntries).Where(w=>w.Length<5).Distinct().OrderBy(w=>w).ToArray();

		Console.WriteLine(string.Join(", ",tokens));

	}
}