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: xWIdFjwbKTGyXyCQu, xzJtDdFjwbKTGyXOhLRpv

A: xWIbdfgjktwxyyCQu, xzJtDbdfgjktwxyOhLRpv
****
Q: zDQZTe, uTQZGe

A: zDqzTe, uTqzGe
****
Q: QYWqXtSLvmygpfx, xlOSLvmygcJDcu

A:
QYWqXtglmsvypfx, xlOglmsvycJDcu
****