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]: kWWHJBJXrtdWEIc, zuoSTTvJXrtdWEeTzrkY
[A]: kWWHJBdejrtwxIc, zuoSTTvdejrtwxeTzrkY


[Q]: yuxHtZ, JsxHBr
[A]: yuhxtZ, JshxBr


[Q]: XduvmkEhXHAcnrFiuggVsJEvWeKkHvYbyF, egqnYuvmkEhXHAcnrFiuggVsupT
[A]:
XdacefgghhikmnrsuuvvxJEvWeKkHvYbyF, egqnYacefgghhikmnrsuuvvxupT