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:
VvhlwACZkfWgxNZSqFtjnRtlJOf, PuYJOhgWgxNZSqFtjfVjEDKsrS
answer:
VvhlwACZkffgjnqstwxznRtlJOf, PuYJOhgfgjnqstwxzfVjEDKsrS


question:
CNDeddaXPKgFDOirxftwJwrqRf, lXbxDAtRIphddaXPKgFDOirxftwJwrqpYKykJslzggOOhbZpEd
answer:
CNDeadddffgijkopqrrtwwxxRf, lXbxDAtRIphadddffgijkopqrrtwwxxpYKykJslzggOOhbZpEd


question:
XClMNIzxkFGZN, wsxbNIzxkzvNJ
answer:

XClMiknxzFGZN, wsxbiknxzzvNJ