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: KxsIGEnEiTvmqYIyLgu, QDmlgIGEnEiTvmerVcQdiAc

A: KxseegiimntvqYIyLgu, QDmlgeegiimntverVcQdiAc
****
Q: ToXDYmPRTlxAEVKuErGQstYFYfqnbTJdpXyOqLb, ybAEVKuErGQstYFYsrhDg

A: ToXDYmPRTlxaeefgkqrstuvyyfqnbTJdpXyOqLb, ybaeefgkqrstuvyysrhDg
****
Q: URamCTkh, FkmCTFS

A:
URacmtkh, FkcmtFS
****