static void Main(string[] args) { var s = new Student("Alex", new Knowledge(3)); University university = new University("CH.N.U."); university.AddStudent(new Student("Andrew Kostenko", new Knowledge(100))); university.AddStudent(new Student("Julia Veselkina", new Knowledge(75))); university.AddStudent(new Student("Maria Perechrest", new Knowledge(92))); university.AddStudent(new Student("Kate Ogirenko", new Knowledge(65))); Internship internship = new Internship("Interlink", university.GetStudents(), university.GetEverage()); Console.WriteLine($"List of internship's students from {university.GetName()} university"); internship.GetInterns(); }