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]: FFRocdlGcbdqILnBpOC, ublGcbdqILnBpIkKHiIZpWv
[A]: FFRocdbbcdgillnpqOC, ubbbcdgillnpqIkKHiIZpWv


[Q]: IQZcUStgd, DHZcUShT
[A]: IQcsuztgd, DHcsuzhT


[Q]: fJsQkJqbFOChvXTuqWtVXzLUptQf, BHChvXTuqWtVZFqFKlgJAr
[A]:
fJsQkJqbFOchqttuvvwxXzLUptQf, BHchqttuvvwxZFqFKlgJAr