input: Write a function to calculate the cubic values of a list of numbers from 1 to 8. The function should print each cubic value.
  assert print_cubic_values()
  
  ### Function Definition:
  def print_cubic_values():
      list_numbers = [1, 2, 3, 4, 5, 6, 7, 8]
      for num in list_numbers:
          print(num**3)
  
  ### Test Cases:
  assert print_cubic_values()
  
output: def print_cubic_values():
      list_numbers = [1, 2, 3, 4, 5, 6, 7, 8]
      for num in list_numbers:
          print(num**3)