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]: WBQtEGiDpQrAvydLyVBirZLArAm, zrcWUugHgBXGiDpQrAvydLyVBirZLArzwRrejcRkSp
[A]: WBQtEaabddgiillpqrrrvvyyzAm, zrcWUugHgBXaabddgiillpqrrrvvyyzzwRrejcRkSp


[Q]: lXtnYyAyCMgqnXBMN, rLtnYyAyCMkfpr
[A]: lXacmntyyygqnXBMN, rLacmntyyykfpr


[Q]: YSdlTJYmcKHxePYJVTlzNqmwdbkUfhtUfdl, kgjHYmcKHxePYJVTlzNqmjZykZSjjtzrt
[A]:
YSdlTJcehjklmmnpqtvxyyzwdbkUfhtUfdl, kgjHcehjklmmnpqtvxyyzjZykZSjjtzrt