interface Shape
  method area() as word
  method area() as word
  method name()
end interface

class Box implements Shape
  word size
  public byte size
  public word area
  public method size() as word
    return 0
  end method
  public method area() as word
    return 0
  end method
  private method area()
  end method
  method name()
  end method
end class

program Main
end program