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]: RBDnaf, jUDneQ
[A]: RBdnaf, jUdneQ


[Q]: lWTVxsFOOpIekbertU, DLLWfLsFOOpIepQy
[A]: lWTVxefioopskbertU, DLLWfLefioopspQy


[Q]: PLjDcSRzJJIzPNmjQxTAinNZGPiXUCilLPCJLvBLyyx, vmFngvNaZjXJaklJStwbAinNZGPiXUCilLPCJLvByvv
[A]:
PLjDcSRzJJIzPNmjQxTabccgiiijlllnnppuvxzLyyx, vmFngvNaZjXJaklJStwbabccgiiijlllnnppuvxzyvv