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: zwxAQyErLHLTkOvfFPLJUegLDKvI, WPUgzgKSZIHyxAQyErLHLTkOvfDm

A: zwaefhklloqrtvxyFPLJUegLDKvI, WPUgzgKSZIHyaefhklloqrtvxyDm
****
Q: FVdAPqFpylA, axtAPqFCdp

A: FVdafpqpylA, axtafpqCdp
****
Q: GMtJdYmbaQesEjyAgKqltvFeGIiKrxaRturEVpQB, MEuQYUyYEVyAgKqltvFeGIiKkRVywRG

A:
GMtJdYmbaQesEjaefggiikklqtvyrxaRturEVpQB, MEuQYUyYEVaefggiikklqtvykRVywRG
****