E|–12–9--11------9---------------------------------------------------------------------9–11–
B|---------------12-----11–12–9--11-------9---------------------------9–11–12-----------
G|------------------------------------------12------11–12–9--11–12-------------------------
It repeats after the 11, you can mindlessly go through this, thought it might be useful for alternate pickers. It’s similar to the Gibert inside outside exercise just more encompassing of multiple strings.
You can extend it to 5 strings to keep the switching of inside picking and outside. 4 Strings or six stays either inside or out.