Looking for a formula to populate the Sprint Number based off of the Start and End Dates



I have a project plan and each task has a start and end date. I would like to determine which Sprint the task will be worked on based on the date range. (It is possible that a task can be worked on for multiple sprints ,and if possible, I would like to know all of the Sprint numbers for that particular task.

I have a separate sheet called Sprint Reference with each Sprint's date range (see below)

And I would like to have the Sprint column (shown below) to have all of the relevant sprint numbers based on the date range of the task.

I was trying to do this with an Index Collect formula but I kept receiving the "unparesable error"

Can any one hel; me to figure out how to do this?



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