instruction:
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.
question:
AxCwHRDpeFyc, DGywHRDpeFZntLg
answer:
AxCdefhprwyc, DGydefhprwZntLg


question:
pTiTGl, xgiTZt
answer:
pTitGl, xgitZt


question:
TXCqYKJur, bYiqYKTK
answer:

TXCkqyJur, bYikqyTK


