static void Main()
{
Teacher teacher = new Teacher("Georgi", "Georgiev", 10, "Mathematics");
teacher.CheckHomework();
Console.WriteLine(teacher.Greeting());
teacher.Goodbay();
Lecturer lecturer = new Lecturer("Atanas", "Atanasov", 12, "Sofia University");
lecturer.CheckHomework();
string str = "wordInSpanish";
string someString = "";
string someOtherString = "";
lecturer.DoSomeExercise();
lecturer.DoSomeExercise(str);
lecturer.DoSomeExercise(someString, someOtherString);
lecturer.Greeting();
Console.WriteLine(Lecturer.MaximumLecturesOfWeek);
Professor professor = new Professor("Erik", "Svenson", 15, "Stockholm University", "Associate professor");
professor.JobInfo();
professor.CheckHomework();
professor.ConductAnExam();
Assistant assistant = new Assistant("Paolo", "Contrera", 7, "University of Lisbon", true);
assistant.Info();
assistant.CheckHomework();
assistant.CheckExams();
assistant.CreateArticles();
SchoolTeacher schoolTeacher = new SchoolTeacher("Vasil", "Vasilev", 14, "Biology");
schoolTeacher.PrintClasses();
schoolTeacher.CheckHomework();
schoolTeacher.Entertain();
CollegeTeacher collegeTeacher = new CollegeTeacher("Ivan", "Ivanov", 11, "Marketing", "MT&M Sofia");
collegeTeacher.CheckHomework();
Console.WriteLine(Person.personCount);
}
