Scrapes all exercise from var_num_string.html. Kind of ugly, though.
Scrapes all exercise from var_num_string.html. Kind of ugly, though.

nntisapeh/intro_programming,ehmatthes/intro_programming,nntisapeh/intro_programming,BadWizard/intro_programming,BadWizard/intro_programming,nntisapeh/intro_programming,chenleo/ipynotebook,BadWizard/intro_programming,chenleo/ipynotebook,ehmatthes/intro_programming,chenleo/ipynotebook,ehmatthes/intro_programming,nntisapeh/intro_programming,chenleo/ipynotebook,BadWizard/intro_programming,ehmatthes/intro_programming