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]: GTYdfOzXuPyBDuLzBSAOklRNXJNOf, YPGUUMOfOzXuPyBDuLzBSPhzlLyyEAZxp
[A]: GTYdbbdflopsuuxyzzAOklRNXJNOf, YPGUUMObbdflopsuuxyzzPhzlLyyEAZxp


[Q]: IsCIiMdPOzjVvRuShXMxTBrypdX, GKvOoPLEHBwmzjVvRuShXMxTBsaFYgPLrvitu
[A]: IsCIiMdPObhjmrstuvvxxzrypdX, GKvOoPLEHBwmbhjmrstuvvxxzsaFYgPLrvitu


[Q]: SnlbtRPvfNDplgbQWpoBOq, UPjuizlvRPvfNDplgbQKEhn
[A]:
SnlbtbdfglnppqrvWpoBOq, UPjuizlvbdfglnppqrvKEhn