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]: aLRBpTDqxhBgaDqlVRvAaHdFFyJdhF, lBoAwPOXGpXqgxhBgaDqlVRvAaNnquXtgeGULGI
[A]: aLRBpTDqaaabdghlqrvvxHdFFyJdhF, lBoAwPOXGpXqgaaabdghlqrvvxNnquXtgeGULGI


[Q]: qyECvyU, GrGECvxC
[A]: qycevyU, GrGcevxC


[Q]: IvzHaUGEhISGjYmdUSXrZgHFHelIHu, LhEaVGEcdxWzoxgvBaUGEhISGjYmdUSXrZWnvEbyCwkC
[A]:
IvzHadegghijmrssuuxyzgHFHelIHu, LhEaVGEcdxWzoxgvBadegghijmrssuuxyzWnvEbyCwkC