https://github.com/moscowpython/learn_python_koans/blob/9b59532f7b083526e9041964b8a929f9c1760b12/koans/about_compound_conditions.py#L59 https://github.com/moscowpython/learn_python_koans/blob/9b59532f7b083526e9041964b8a929f9c1760b12/koans/about_compound_conditions.py#L67
