Super super SUPER dumb question

Hi all:

I’m finishing up week 1 of the 8 week Alpinism plan. Today was “Max Strength” day wherein I’m pairing pull-ups with box steps, etc. Question is simple. The plan says this:

2 x 4 reps.
Rest 3 minutes.
Then 2 x 3 reps.
Rest 3 minutes.
Then 2 x 2 reps.

Does this mean, to use the first iteration (2 x 4 reps), 1 set of pull-ups and 1 set of box steps or 2 sets of pull-ups and 2 sets of box steps?

Just want to do things correctly!

Christian