using System;

using System.Text.RegularExpressions;

​

/*

* A palindrome is a collection of alphabetical characters that reads the same backward or forward.

* Write a function that checks if a given word is a palindrome.

* 

* Character case should be ignored.

* Only alphabetic characters should be included in the evaluation

* 

*/

​

public class Palindrome

{

    public static bool IsPalindrome(string word)

    {

            bool result = false;

            word = word.ToLower();

            Regex rg = new Regex(@"^[a-zA-Z0-9\s]*$");

            word = Regex.Replace(word, "[^a-zA-Z0-9]", String.Empty);

​

            int wordLength = word.Length -1; 

            for(int x=0; x<= word.Length-1; x++)

            {

                if(!string.IsNullOrEmpty(word[x].ToString()))

                {

                    if(word[x] == word[wordLength - x] )

                    {                       

                        result = true;

                    }

                    else {

                        result = false;

                        break;

                    }

                }

                else 

                {

                    result= false;

                }

            }

            return result;

    }

​

    public static void Main(string[] args)

    {

        Console.WriteLine(Palindrome.IsPalindrome("Deleveled"));

        Console.WriteLine(Palindrome.IsPalindrome("KAyak"));

        Console.WriteLine(Palindrome.IsPalindrome("Never a foot too far, even."));

    }

}