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]: SPPSTZdBJBvUNhYrkbSpKKzTxRqywiHpFHreBMqr, EvwNLbKwhxJzudSIvUNhYrkbSpKKzTxRqjfWWVcKNITX
[A]: SPPSTZdBJBbhkkknpqrrstuvxyzywiHpFHreBMqr, EvwNLbKwhxJzudSIbhkkknpqrrstuvxyzjfWWVcKNITX


[Q]: PesrUHWVVQyJKjxfSR, LhWXkXkUHWVVQywnD
[A]: PesrhquvvwyJKjxfSR, LhWXkXkhquvvwywnD


[Q]: PlGZLxGhsrTGOwXpO, GLGyMYaLxGhsrTWgwbRzc
[A]:
PlGZghlrstxGOwXpO, GLGyMYaghlrstxWgwbRzc