end result should be: `[(A, 1), (A, 2), (A, 3), (B...
# getting-startedp
poohbar
06/07/2018, 11:46 AMend result should be:
[(A, 1), (A, 2), (A, 3), (B, 1), (B, 2), ..]2 Views
poohbar
06/07/2018, 11:46 AM[(A, 1), (A, 2), (A, 3), (B, 1), (B, 2), ..]