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]: PFEUnPImqmABedKYuNvVsFBITZUXZlS, vXzDhuddCKPOyeqUImqmABedKYuNvVsFevz
[A]: PFEUnPabdefikmmnqsuvvyBITZUXZlS, vXzDhuddCKPOyeqUabdefikmmnqsuvvyevz


[Q]: sXYyKhAsHZpCFYeHaDv, GQCDAsHZpCFdpYQ
[A]: sXYyKhacfhpszYeHaDv, GQCDacfhpszdpYQ


[Q]: WesZvh, NNsZKM
[A]:
Weszvh, NNszKM