List operations, count and split list into lists

Hi,
I am trying to number doors in a room, if the room has more than one door. I established how many doors have a room like shown in the picture and the list shows 29 Elements of Count.

But what i need is, first list should be from 1 to 9, second list should be from 1 to 20 and so on. 29 seperate lists that contains from 1 to x. Stuck at this point. Any help would be appreciated, thanks in advance.

in code block type:
1..numberofdoors..1;
numberofdoors is the data from count node

Thank you for the swift answer.