input: from typing import List
  
  def cube_of_number(number: int) -> int:
      """ Given an integer, return its cube.
      >>> cube_of_number(3)
      27
      >>> cube_of_number(5)
      125
      """
  
  def add4(first, second, third, fourth):
      """
      A function add4 is designed to take four input generic parameters and return their sum. 
      Assume each given parameter is a valid numerical or string representation of a number and safely convert them to their actual data type within the function.
      
      Example:
      >>> add4("1", "2", "3", "4")
      10
      >>> add4(1, 2, 3, 4)
      10
      >>> add4("1.5", 2, 3.5, "4")
      11.0
      """
  
  def function1():
      """
      A Python function to read two numbers from standard input and prints the result of division. It should check for division by zero and print "Error: Division by zero." in such cases. These numbers can be integers or floating-point in the input. The result should be printed with two decimal places.
      
      Example:
      >>> function1('stdin_input_is_mocked')
      Please enter the first number: 4
      Please enter the second number: 2
      2.00
      >>> function1('stdin_input_is_mocked')
      Please enter the first number: 4
      Please enter the second number: 0
      Error: Division by zero.
      >>> function1('stdin_input_is_mocked')
      Please enter the first number: 5
      Please enter the second number: 2
      2.50
output:     
      try:
          first_number = float(input("Please enter the first number: "))
          second_number = float(input("Please enter the second number: "))
          if second_number == 0:
              print("Error: Division by zero.")
          else:
              result = first_number / second_number
              print(f"{result:.2f}")
      except ValueError:
          print("Error: Invalid input. Please enter valid numbers.")
  