What is the error with this code?

Question

https://code.sololearn.com/cy5JKeCwGDVW/?ref=app

Answer 1

A closing bracket is missing in line 28. Also, use 'and' instead of &.

Answer 2

You are missing a ) in line 28.

Answer 3

Thanks but it still shows time limit exceeded which does not happen when i use the python idle on my laptop.

Answer 4

It doesn't happen with very small strings.

Building permutations can take up a lot of time, so that might be the problem.

btw: You don't necessarily need perms for that assignment.