static void Main(string[] args)
{
SchoolClass a = new SchoolClass("a");
SchoolClass b = new SchoolClass("b");
SchoolClass v = new SchoolClass("v");
SchoolClass g = new SchoolClass("g");
School school = new School("MG");
school.AddSchoolClass(a, b, v, g);
school.DeleteSchoolClass("a");
School.PrintAllClasses(school);
Teacher teacher1 = new Teacher("Gogo1");
Teacher teacher2 = new Teacher("Gogo2");
Teacher teacher3 = new Teacher("Gogo3");
Teacher teacher4 = new Teacher("Gogo4");
school.AddTeacher(teacher1, teacher2, teacher3, teacher4);
school.DeleteTeacher("Gogo2");
Subject subject = new Subject("Biology", 14, 14);
teacher1.AddSubject(subject);
school.PrintTeachers();
Student student1 = new Student("Gogo", "Ivanov", 1);
Student student2 = new Student("Ivan", "Ivanov", 3);
Student student3 = new Student("Dimitar", "Ivanov", 2);
Student student4 = new Student("Bojidar", "Ivanov", 4);
a.AddStudent(student1, student3, student2, student4);
a.PrintStudents();
}