create: main.cpp

create: Rational.h, Rational.cpp, main2.cpp

create: complex.h, complex.cpp, main.cpp

create: Summator.h, Summator.cpp, SquareSummator.h, SquareSummator.cpp, CubeSummator.h, CubeSummator.cpp, main.cpp

create: Human.h, Human.cpp, Student.h, Student.cpp, Teacher.h, Teacher.cpp, main.cpp

create: Animal.h, Fish.h, Bird.h, FlyingBird.h, main.cpp

create: Figure.h, Circle.h, circle.cpp, rectangle.h, Rectangle.cpp, Triangle.h, Triangle.cpp, Square.h, Square.cpp, main.cpp