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]: FlPnbGTLphCQEuXsquYeqRCxUbNSPxhIwzhbvUcwYjn, NggquYeqRCxUbNSPxhIwicSHVzWSoSt
[A]: FlPnbGTLphCQEuXsbcehinpqqrsuuwxxyzhbvUcwYjn, NggbcehinpqqrsuuwxxyicSHVzWSoSt


[Q]: XEQkWoPSxh, lbBMkWoPbRL
[A]: XEQkopwSxh, lbBMkopwbRL


[Q]: yRlwwXiePewjFuStYWxN, YTsePewjFuDVnPoIQ
[A]:
yRlwwXieefjpuwStYWxN, YTseefjpuwDVnPoIQ