Sagot :
answers:
1 zebras
1 zebras2 monkeys
1 zebras2 monkeys3 mountains
1 zebras2 monkeys3 mountains4 ships
1 zebras2 monkeys3 mountains4 ships5 cards
1 zebras2 monkeys3 mountains4 ships5 cards6 lions
1 zebras2 monkeys3 mountains4 ships5 cards6 lions7 students
1 zebras2 monkeys3 mountains4 ships5 cards6 lions7 students8 stairs
1 zebras2 monkeys3 mountains4 ships5 cards6 lions7 students8 stairs9 bees
1 zebras2 monkeys3 mountains4 ships5 cards6 lions7 students8 stairs9 bees10 players