Question: how to wash your hair
Option 0: get your hair wet. Then lather it with dish soap. Rinse out the dish soap completely. Now put conditioner on your hair. Let it sit for a few minutes. Rinse out the conditioner.
Option 1: get your hair wet. Then lather it with shampoo. Rinse out the shampoo completely. Now put conditioner on your hair. Let it sit for a few minutes. Rinse out the conditioner.
Answer: 1