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]: CXhVNMCAUcXvQ, guNMCAUIEkxX
[A]: CXhVacmnucXvQ, guacmnuIEkxX


[Q]: eQfcBukrKBtnA, VlHukrKBYQTtp
[A]: eQfcBbkkrutnA, VlHbkkruYQTtp


[Q]: usBflocWnnLPVTqXOGuENPGOaVKdFcTShNPj, LfajaQHkrqXOGuENPGOaVKdFcTkpNDmkqEbR
[A]:
usBflocWnnLPVTacdefggknoopqtuvxShNPj, LfajaQHkracdefggknoopqtuvxkpNDmkqEbR