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:
qtekELFXGKkN, qDygekELFXGKXCN
answer:
qteefgkklxkN, qDygeefgkklxXCN


question:
JpLTSUXHsaxOqLYMJZRPsUVcNBBRWi, eVFbaivHshRVLTSUXHsaxOqLYMEUfh
answer:
JpahllmoqsstuxxyJZRPsUVcNBBRWi, eVFbaivHshRVahllmoqsstuxxyEUfh


question:
HnzdAaGNfFKNhDocgyuBMjH, WbMFKNhDocgyqiLJyJD
answer:

HnzdAaGNfcdfghknoyuBMjH, WbMcdfghknoyqiLJyJD