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.

[EX Q]: BWkySbXUeULvPvqNlJaHgZqakxIBD, YSAIoOhDxJVOjUeULvPvqNlJaHdLcMeY
[EX A]: BWkySbXaehjllnpquuvvgZqakxIBD, YSAIoOhDxJVOjaehjllnpquuvvdLcMeY

[EX Q]: aVEgot, iCEgyQ
[EX A]: aVegot, iCegyQ

[EX Q]: JHSzbiUEPOEUMthbkyODUOMGeKZ, UyouPOEUMthbkyODkbPtLYUy
[EX A]:
JHSzbiUEbdehkmooptuyUOMGeKZ, UyoubdehkmooptuykbPtLYUy