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: emRSKsEqfIE, GonSKsERRP

A: emRekssqfIE, GonekssRRP
****
Q: dOmorQnPc, QhborQER

A: dOmoqrnPc, QhboqrER
****
Q: sVrVgVssiDzDVpewh, MdSxVgVssiDzdIElrCC

A:
sVrdgissvvzDVpewh, MdSxdgissvvzdIElrCC
****