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:
HgQcHMpYpnwbegODfA, scnWnMpYpnwbJrEct
answer:
HgQcHbmnppwyegODfA, scnWnbmnppwyJrEct


question:
DwBBcDUzIfvQKEpyXejCnDzElh, pxNnVevjgBBcDUzIfvQKEpyXXauw
answer:
DwbbcdefikpquvxyzejCnDzElh, pxNnVevjgbbcdefikpquvxyzXauw


question:
WkeDzmlbgJDfVCe, QPqaEzmlbgJzd
answer:

WkeDbgjlmzDfVCe, QPqaEbgjlmzzd