public static void Main()
string[] blab = new string[5];
Console.WriteLine("Write a string contain with word no: ");
myString= Console.ReadLine();
var replacement = myString. Replace("no","yes");
Console.WriteLine(replacement);
Console.WriteLine("Write the first string: ");
String1=Console.ReadLine();
Console.WriteLine("Write the second string: ");
String2=Console.ReadLine();
var Same = string.Equals(String1, String2, StringComparison.OrdinalIgnoreCase);
Console.WriteLine("Equal.");
Console.WriteLine("Not Equal.");