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]: CNDeddaXPKgFDOirxftwJwrqRf, lXbxDAtRIphddaXPKgFDOirxftwJwrqpYKykJslzggOOhbZpEd
[A]: CNDeadddffgijkopqrrtwwxxRf, lXbxDAtRIphadddffgijkopqrrtwwxxpYKykJslzggOOhbZpEd


[Q]: xAHxCrBkhwLgbKqzertGd, LJBnBkhwLgbKqzertoGzGJRujTHRgI
[A]: xAHxCrbbeghkklqrtwzGd, LJBnbbeghkklqrtwzoGzGJRujTHRgI


[Q]: MFnISTAyyyjyQxIjlQlp, tqLuENriQISTAyyyjyQxIjlmDFXSwNJcb
[A]:
MFnaiijjlqstxyyyyQlp, tqLuENriQaiijjlqstxyyyymDFXSwNJcb