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]: IkeXoIMMRvtr, wAUXoIMMVkK
[A]: IkeimmoxRvtr, wAUimmoxVkK


[Q]: RtHlvYudwEdXDrAh, LGZrsqudwEdXsSXO
[A]: RtHlvYddeuwxDrAh, LGZrsqddeuwxsSXO


[Q]: QAcidSlSdpDovgFmFtJ, NNiMJbmidSlSdpDovgFmFnggY
[A]:
QAcdddffgilmopssvtJ, NNiMJbmdddffgilmopssvnggY