Hi Guys,

I need a little help, I want to create a scrip in Dynamo to calculate 4 lists like the image below.

If you see, we have 2 moments to obtain the results.

The first one is [list1+list2-list3], the result is the list4, and I just repeat this sequence one time.

The second moment is [list4+list2-list3] and the result back to list4, this will complete all list 4.

I really don’t know what to do, because I will use the result of list 4 to find the other index in list 4.

Can someone help me or give me an advice?