using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

using NUnit.Framework;

using System.Text;

​

//    Palindrome                                               

// 

// A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward.

//

public class Program

{

    public static void Main()

    {

        string[] array = { "civic", "aabb", "deified", "p2P", "microsoft", "deleveled", null,

                          "level", "madam", "raceCar", "Net", "repaper",

                          "A", "", "reviver", "rotator", "MadamImAdam", "*$$*",

                          "sagas", "xyz", "Palindrome", "tacoCat", "stats"

                         };

​

        //Console.WriteLine($"array 4={array[4]}");

        Array.ForEach<string>(array, w => {var r = a.IsAPalindrome(w); Console.WriteLine("{0} is {1} a palindrome", w, r);});

    }

}

public class A

{

    public bool IsAPalindrome(string word)

    {

        if (string.IsNullOrEmpty(word))

            return true;

        word = word.ToLower();

        for (var i = 0; i < word.Length/2; i++)

        {

            if (word[i] != word[word.Length - 1 - i])

                return false;

        }

        return true;

    }

}