Hi @Stephensr
Yes you can do it 🙂
For that i made one assumption.
The id of each item in listB corresponding to item in List A should be same
With that i have designed the flow like below

Expression: concat(sub(int(triggerOutputs()?['body/{VersionNumber}']),1),'.0')



Here I am using two Lists, List1 and List2
Hope this helps 🙂
Mark it as solution if it resolves your query 🙂