I bet in other programming languages "add binary strings" is trivial.
Step 1: int(a, base=2)
Step 2: oh shit, python has no straight forward way to convert an int back to an arbitrary base,
https://leetcode.com/problems/add-binary/
solutions: https://stackoverflow.com/questions/2267362/how-to-convert-an-integer-to-a-string-in-any-base
library solution: https://pypi.org/project/basencode/