Main> 1/1: Building Do (Do.idr)Loaded file Do.idrMain> Just (S (S (S Z)))Main> Just ZMain> Just (S (S (S Z)))Main> Just ZMain> Bye for now!Main> 1/1: Building Do (Do.idr)
Loaded file Do.idr
Main> Just (S (S (S Z)))
Main> Just Z
Main> Just (S (S (S Z)))
Main> Just Z
Main> Bye for now!