How to sort string list according to their middle element?

Question

Suppose a list = ["David", "Jennifers", "Jacke"]
I want to sort by middle element.(v, i, c) in alphabetical order.

So sorted list would be
["Jacke", "Jennifers", "David"]

https://code.sololearn.com/cHCW35z4rky4/?ref=app

Answer 1

https://code.sololearn.com/c29ctm9787Co/?ref=app