input: Write a function to calculate the cubic values of a list of numbers from 1 to 8 and print each cubic value.
  
  def calculate_cubic_values(numbers):
      for num in numbers:
          print(num**3)
  
  assert calculate_cubic_values([1, 2, 3, 4, 5, 6, 7, 8])==None
output: def calculate_cubic_values(numbers):
      for num in numbers:
          print(num**3)