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:
bYanfkXiXZHgvE, PWRVfkXiXZgDqxI
answer:
bYanfikxxzHgvE, PWRVfikxxzgDqxI


question:
oyaceoXTPWtjiSiWeBdGFQgFpi, HgariTqtjiSiWeBdGFQgFQSgdX
answer:
oyaceoXTPWbdeffggiijqstwpi, HgariTqbdeffggiijqstwQSgdX


question:
cXaliQeGstSuufwUxdqUzMQrzpErPXguuNt, kpsvTtSuufwUxdqUzMQrzpCKNqhjbIXfzw
answer:

cXaliQeGsdfmpqqrstuuuuwxzzErPXguuNt, kpsvTdfmpqqrstuuuuwxzzCKNqhjbIXfzw