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]: IvGCxiBIYILtNMKGIdXOMPwcuxZK, sqEIyBIYILtNMKGIdXOMLVRnOTwCCWKU
[A]: IvGCxibdgiiiklmmnotxyPwcuxZK, sqEIybdgiiiklmmnotxyLVRnOTwCCWKU


[Q]: sfEKDNerOUbZBtcLdIswp, HYbqjKDNerOUbZBtcGWNNuLR
[A]: sfEbbcdeknortuzLdIswp, HYbqjbbcdeknortuzGWNNuLR


[Q]: HEVxTfFGoaULNczsDzTAEBdhKuEy, YKioaULNczsDzTAESKQeTYfxLZmT
[A]:
HEVxTfFGaacdelnostuzzBdhKuEy, YKiaacdelnostuzzSKQeTYfxLZmT