instruction:
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.
question:
ggcfnOmxYQb, rOHVXcfnOmjNmAh
answer:
ggcfmnoxYQb, rOHVXcfmnojNmAh


question:
ETWieEUqcfRC, AYeEUqckk
answer:
ETWiceequfRC, AYceequkk


question:
xcAhUmjVYNwlPh, VlTAhUmjVYNPHrp
answer:

xcahjmnuvywlPh, VlTahjmnuvyPHrp