public static void Main()
Console.WriteLine("Please enter a sentence:");
string firststring = Console.ReadLine();
Console.WriteLine("Please enter a second sentence:");
string secondstring = Console.ReadLine();
firststring = firststring.ToLower();
secondstring = secondstring.ToLower();
firststring = firststring.Trim();
secondstring = secondstring.Trim();
int result = string.Compare(firststring,secondstring);
Console.WriteLine("These two strings are equal.");
Console.WriteLine("These two strings are not equal.");