static void Main()
{
var someSchool = new School();
var eveningClass = new Class("Level#2");
var trainer = new Teacher("Mr. NakMan");
var disciplineClassA = new Discipline("OOP", 2, 2);
var firstStudent = new Student("Anamalech", 1);
var thirdStudent = new Student("Corson", 3);
var secondStudent = new Student("Boruta", 2);
var forthStudent = new Student("Lucifer", 4);
//Okay. Let's summon the demons... pardon, Demos!
someSchool.AddClass(eveningClass);
eveningClass.AddTeacher(trainer);
trainer.AddDiscipline(disciplineClassA);
eveningClass.AddStudent(firstStudent);
eveningClass.AddStudent(secondStudent);
eveningClass.AddStudent(thirdStudent);
eveningClass.AddStudent(forthStudent);
Console.WriteLine(eveningClass.ToString());
Console.WriteLine();
}