My initial instinct was She would go with the highest number, but then I thought She would expect that so I guessed four. Of course She was one step ahead of me & predicted my reasoning. So it was five.

30 35

28 32

12 10

8 30

17 30

6 0

21 30

14 32

16 0

8 10

15 30

14 30

28 32

12 31

31 33

14 30