static void Main(string[] args) { Console.Write("Enter first variable -> "); int firstV = int.Parse(Console.ReadLine()); Console.Write("Enter second variable -> "); int secondV = Int32.Parse(Console.ReadLine()); Console.Write("Enter third variable -> "); int thirdV = Int32.Parse(Console.ReadLine()); var operations = new ArithmeticOperations(); operations.Average(firstV, secondV, thirdV); Console.WriteLine(operations.Sum(firstV, secondV, thirdV)); Console.WriteLine(operations.Average(firstV, secondV, thirdV)); var tell = new Tell(); Console.WriteLine("What is your name?"); var name = Console.ReadLine(); tell.Greeting(name); }