Which makes no practical sense, does it?

Unnecessary to iterate over all letters of s2.

nice

It's anything but a good solution. Unnecessary lists, lambda functions and a while loop.

Ugly.

"get a string as text and an int as the rule of manipulation, and should return encrypted text"
So why don't you describe the rule?

"Find max(abs(length(x) − length(y)))" is the most retarded description I have found on this site in over 3 years.

pretty ugly tbh

Yes.

Typo in the last test's description: Input: '??*1=??' "Answer for expression": '??*11=??'

Should be '1' instead of '11' in "Answer for expression"

Why would it make no sense? If it's 57 minutes after midnight, it's 00:57. Why would it be 12:57 if 67 minutes after midnight is 01:07?

I've done several 4kyu katas that were easier than this one. Also, the requirements are terribly illogical.

This doesn't work in Python 3, round() has been changed for worse for some reason.

The description needs to be updated. I am getting "Don't use definition of empty list with [], list comprehensions, spread operator, or slices notations" while I am not using any of these.

Nice.