using System;

public class Program

{

    public static void Main()

    {

        var input = "dad";

        var test = IsPalindrome(input.ToLower());

        Console.WriteLine(test);

    }

    public static Boolean IsPalindrome(string input)

    {

        var evaluateArray = input.ToCharArray();

        int lastPosition = evaluateArray.Length - 1;

        foreach (char element in evaluateArray)

        {           

            if(!element.Equals(evaluateArray[lastPosition]))

            {

                return false;

            }

            lastPosition--;

​

        }

​

        return true;

    }

}