CommonItem | An item

I don't want to split a stream into two but I want to add an operation that splits the data before I transform it.

To illustrate this, let's say I have some common object coming in:

I am attempting to create a generater where the user inputs how many items to generate. For each time, a number from 1 to 100 is generated. Depending on the result, an item is randomly selected from one of three arrays. It should loop as needed and then display the results. I have partial code below as I tried to follow the logic.

I have these two lists:

list1= [1, 3, 8, 14, 20]

list2= [1, 2, 7, 8, 14, 20]

I obtained the common items between these two lists as follow: commonItems=list(set(list1).intersection(list2))

now randomly picked one of the common items as :

pick=random.sample(commonItems,1)

Now, when I try to identify the picked item index in one of the above lists as : PickedItemIndex=list1.index(pick)

I got this error: ValueError: [8] is not in list

even if, as you can see, item 8 really exists in list1

what is the problem? I am a new pythonic. Thank you in advance.

I get intermittent problems with MVC routing attributes which stop working on our Azure hosted site.

Controller action and attributes look like this:

I need to sort my data by a specific order as shown below.