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]: XVrYDcuUfslOg, knDcuUfslVnB
[EX A]: XVrYcdflsuuOg, kncdflsuuVnB

[EX Q]: XEQkWoPSxh, lbBMkWoPbRL
[EX A]: XEQkopwSxh, lbBMkopwbRL

[EX Q]: veqnGVMAeevsFzgkrxIiilshKDjlIOZrlQMqWpVeIuxhZNvVx, xbxdHeVkPGYYcQgkrxIiilshKDjlIOZrlpsmuczqWAb
[EX A]:
veqnGVMAeevsFzdghiiiijkklllorrsxzQMqWpVeIuxhZNvVx, xbxdHeVkPGYYcQdghiiiijkklllorrsxzpsmuczqWAb