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]: BdtyXeqIZGIuAXDESwwyrhgYipmjbSVcIUDQWlNZZyCp, pNmBdINJEsRAQMLxTSwwyrhgYipmjbSVcIchBHDwbaPiH
[A]: BdtyXeqIZGIuAXDEbcghiijmprssvwwyyUDQWlNZZyCp, pNmBdINJEsRAQMLxTbcghiijmprssvwwyychBHDwbaPiH


[Q]: SrwgBlTsZI, QMgBlTWndy
[A]: SrwbgltsZI, QMbgltWndy


[Q]: bxdHlUIAATesrZTaKpOaWmzGdMmxQlkIEnlKHKLTdpKluFHssfIU, DZbSAaIUOaWmzGdMmxQlkIEnlKUzuFWpNywfG
[A]:
bxdHlUIAATesrZTaKpadegikkllmmmnoqwxzHKLTdpKluFHssfIU, DZbSAaIUadegikkllmmmnoqwxzUzuFWpNywfG