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:
waqxlFUPhLobyIzQXYbJ, asOlLmdXlFUPhLobAhkAD
answer:
waqxbfhllopuyIzQXYbJ, asOlLmdXbfhllopuAhkAD


question:
KgJSwpXpfz, zBJSwpIt
answer:
KgjpswXpfz, zBjpswIt


question:
CWYJNV, KrYJol
answer:

CWjyNV, Krjyol