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.

[Q]: MGyUjfZyuBvjQFCLTMivHjLTFoSvZJGes, WykPHnbZwyuBvjQFCLTMivHjLdvyidoBC
[A]: MGyUjfZbcfhijjllmqtuvvyTFoSvZJGes, WykPHnbZwbcfhijjllmqtuvvydvyidoBC


[Q]: HUdpmbfDcAQVtTbfmcGfI, GpUTTjymZXdpmbfDcAQVtTbfDaBIxZbwhRK
[A]: HUabbcddffmpqttvmcGfI, GpUTTjymZXabbcddffmpqttvDaBIxZbwhRK


[Q]: whKaLleVTsLJZyYCtLMkeSuphmiEcLLmsGOvuDrkX, ERELsUHOvzYCtLMkeSuphmiEcLLmsGfnXhtmXHy
[A]:
whKaLleVTsLJZycceeghiklllmmmpsstuyOvuDrkX, ERELsUHOvzcceeghiklllmmmpsstuyfnXhtmXHy