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]: onwwMGTSOAFxqgAYYMHFTfneJCstTWGxFPdckMy, GHcTUOCufulheIiAYYMHFTfneJCstTmVgI
[A]: onwwMGTSOAFxqgaceffhjmnstttyyWGxFPdckMy, GHcTUOCufulheIiaceffhjmnstttyymVgI


[Q]: hlxZpQiuEOKKrlYqA, megAsiHtmZpQiuEOKKnrswzRNkZ
[A]: hlxeikkopquzrlYqA, megAsiHtmeikkopquznrswzRNkZ


[Q]: XRupKU, XyupOQ
[A]:
XRpuKU, XypuOQ