input: Write a function to output the top 3 numbers from an array of integers. If the array has fewer than 3 numbers, return as many as possible. If the array is empty, return an empty list.
  def top_three(numbers):
      sorted_numbers = sorted(numbers, reverse=True)
      return sorted_numbers[:3]
  
  print(top_three([7, 13, 5, 8, 50, 11, 64, 48]))
  print(top_three([7, 13, 5]))
  print(top_three([1]))
  print(top_three([]))
output: def top_three(numbers):
      sorted_numbers = sorted(numbers, reverse=True)
      return sorted_numbers[:3]