[C#] String Palindromes

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _08.Palindromes
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] separators = { ' ','.','?','!',',' };
            string text = Console.ReadLine();
            var words = text.Split(separators, StringSplitOptions.RemoveEmptyEntries).ToList().Distinct();
            var resultSortedWords = new List<string>();
            foreach (var w in words)
            {
                bool isPalindrome = true;
                for (int i = 0; i < w.Length / 2; i++)
                {
                    if (w[i] != w[w.Length - i - 1])
                    {
                        isPalindrome = false;
                    }
                }
                if (isPalindrome)
                {
                    resultSortedWords.Add(w);
                }
            }
            resultSortedWords.Sort();
            Console.WriteLine(string.Join(", ",resultSortedWords));
        }
    }
}