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: grdjXqenIwjoZBXWDxTvdzcpeg, gvXqenIwjoZBXuLe

Answer: grdjbeijnoqwxxzWDxTvdzcpeg, gvbeijnoqwxxzuLe


Question: fbLsrRMhOefzPguFANCpmJUEB, PHPApINHifzPguFANCpkFlmNyGXh

Answer: fbLsrRMhOeacffgnppuzmJUEB, PHPApINHiacffgnppuzkFlmNyGXh


Question: mVtTgDOVqiDsbhJvnbYwgpFAJEt, rubcfCNqArUtWbYtTgDOVqiDsbhJvnXd

Answer:
mVbddghijnoqsttvvbYwgpFAJEt, rubcfCNqArUtWbYbddghijnoqsttvvXd