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.

[EX Q]: NEyYftDkqtWUqDWWLzqBFNpwcuWJAG, gmYgvjvPDWWLzqBFNpwcuLdX
[EX A]: NEyYftDkqtWUqbcdflnpquwwwzWJAG, gmYgvjvPbcdflnpquwwwzLdX

[EX Q]: gJiRNoiMWddkCCS, hAufoiMWddkCaOrEq
[EX A]: gJiRNcddikmowCS, hAufcddikmowaOrEq

[EX Q]: XEegRvsmpAaD, HBvsmpAVbMK
[EX A]:
XEegRampsvaD, HBampsvVbMK