Mafia 84. Memorized it, turned it in, forgot it!

How? More students? In my opinion, five or six is enough.

No, I won't add any more. Otherwise, it will no longer be a shortened version of Mafia. I think in this situation, the Mafia players need to demonstrate their skill to win, which is quite possible. Or is the imbalance too great? Because if there are few townspeople, everything could be decided in 3 nights with a certain amount of luck/bad luck.

Added 3 minutes later
Or you could strengthen the Mafia by allowing the potatoes to vote along with the professor.