def fill_seats(people):
   if len(people) == 1:
      return [people]
   else:
      possible = []
      for i in range(len(people)):
         this_person = people[i]
         everyone_else = people[:i] + people[i+1:]
         for seating_arrangement in fill_seats(everyone_else):
            possible = possible + [[this_person] + seating_arrangement]
      return possible

our_class = ["Biella", "Gwen", "Katie", "Seth", "Will"]