using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine(Palindrome("madam"));

    }

    public static bool Palindrome(string str)

    {

        char[] charArray = str.ToCharArray();

        Array.Reverse(charArray);

        string reversed = new string(charArray);

        return str.Equals(reversed, StringComparison.OrdinalIgnoreCase); 

    }

}