input: 
  def add_and_find_min(value: int, int_list: IntList) -> int:
      """ Add a given integer value to the IntList and find the minimum value in the list.
      >>> int_list = IntList()
      >>> add_and_find_min(3, int_list)
      3
      >>> add_and_find_min(1, int_list)
      1
      >>> add_and_find_min(4, int_list)
      1
      >>> add_and_find_min(0, int_list)
      0
      """
      int_list.add_value(value)
      return int_list.find_min()
  
output:     int_list.add_value(value)
      return int_list.find_min()