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]: sCBIICDAygeMmdOdBHGT, dwbCPmNEECDAygeMmdOuS
[A]: sCBIIacddegmmoydBHGT, dwbCPmNEEacddegmmoyuS


[Q]: keQjVQJoLJqqOrlxRWdRSQFVlkFVDRFMFraDAjrMUWTl, JmuiZYBjLvctSZmAZUxRWdRSQFVlkFVDRFMFrpya
[A]: keQjVQJoLJqqOrlddffffklmqrrrrsvvwxaDAjrMUWTl, JmuiZYBjLvctSZmAZUddffffklmqrrrrsvvwxpya


[Q]: kQaxfzXRSJAF, difzXRAC
[A]:
kQaxfrxzSJAF, difrxzAC