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]: GpDEcNmPxRXWfIVaRXtePpattPuxz, NfqNQBXWfIVaRXtePpamAXXLcGG
[A]: GpDEcNmPxRaaefipprtvwxxttPuxz, NfqNQBaaefipprtvwxxmAXXLcGG


[Q]: gTVFxrlbKgnwIzmGTwFxWvWejeIbG, SqNwrlbKgnwIzmGTlrlZxRT
[A]: gTVFxbggiklmnrtwzwFxWvWejeIbG, SqNwbggiklmnrtwzlrlZxRT


[Q]: XuRYkCFkrniHMyJMbMyZ, kuSCFkrniHMybUcuQ
[A]:
XuRYkcfhikmnryJMbMyZ, kuScfhikmnrybUcuQ