To be honest, i have no idea! I got Rikku to be blamed for it.
EDIT: I just checked my book and i think it's five. Not sure.
I think you should do it in this order:
2, 3, 4, 4, 5, 6, 7, 8, 8, 1, 1, 2, 2, 2, 3, 4, 5, 5, 6, 7, 8, 8, 8, 1, 2, 3, 4, 4, 5, 5, 6, 8.