Hello, it's a duplicate: https://python-forum.io/Thread-Working-with-lists-homework-2
I have seen this more than one time. We don't like it. You keep people busy with one question at different places. You need two lists and one empty list. One outer loop iterating over the first list and one inner loop iterating over the second list. In the inner loop you concatenate the two elements from the outer-loop and inner-loop. Then you append them to the empty list. This text is 10 times longer as the source code... Complicated solution: from string import ascii_lowercase as letter list1 = [str(i) + c for i in range(1,4) for c in letter[:3]] list2 = [c[::-1] for c in list1] But this won't help you. Before you understand the code above, you have to understand for-loops and nested for-loops. Then you can proceed with list comprehensions. But I don't see that your intention is to learn and understand Python. You just want to finish your homework, which bother you. Greetings Andre -- https://mail.python.org/mailman/listinfo/python-list
