In this task, you are given two strings A,B. You must perform the following operations to generate the required output list: (i) Find the longest common substring in the strings A and B, (ii) Convert this substring to all lowercase and sort it alphabetically, (iii) Replace the substring at its respective positions in the two lists with the updated substring.

Q: IHmQAZ, YRmQBK

A: IHmqAZ, YRmqBK
****
Q: tbryyilGxhDNE, rLMLYEKryyilGxXlxysI

A: tbgilrxyyhDNE, rLMLYEKgilrxyyXlxysI
****
Q: LrqQcn, guqQiP

A:
Lrqqcn, guqqiP
****