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]: WteGDGkrVZETqbOTntfLqkcFjv, RhrSmMAWmnIDDGkrVZETqbOTntfomYn
[A]: WteGbdefgknoqrtttvzLqkcFjv, RhrSmMAWmnIDbdefgknoqrtttvzomYn


[Q]: sArqYAGcqqqwfYjjHbtjVBWynFIbcpSAdIKsbsfkBC, MJFqdQNTbXXzFYjHbtjVBWynFIbcpSMeLBvwbYm
[A]: sArqYAGcqqqwfYjbbbcfhijjnpstvwyAdIKsbsfkBC, MJFqdQNTbXXzFYbbbcfhijjnpstvwyMeLBvwbYm


[Q]: lfmHCu, xZmHPq
[A]:
lfhmCu, xZhmPq