input: 
  def optimize_printing(numbers: List[int]) -> List[int]:
      """ Optimize the printing of numbers in a given list by using a more efficient method.
      >>> optimize_printing([1, 2, 3, 4, 5, 6])
      [1, 2, 3, 4, 5, 6]
      """
      print(*numbers, sep='\n')
      return numbers
  
output:     sorted_numbers = sorted(numbers)
      print(*sorted_numbers, sep='\n')
      return sorted_numbers