Right header containing the numbers of all exercises in both, left and right, pages

I would like to do the following thing.

Let’s suppose that I compose an exercise book. On the double page 30-31, I have the first lines (with the number) of exercises 91, 92, 94, 93, 95. Spread over the two pages, or all on page 30, or all on page 31, whatever.

I would like the running title on the right to be composed like this:

Exercises 91 to 95 31

(The running title on the left is Chapter something.) In case there are no exercises starting on pages 30-31 and the last exercise starting on page 29 is numbered 90, I would like the running title to be

Exercise 90 (continued) 31

Has anyone seen anything like this before? Thanks for any help.