def build_string(message, *values,  sep = ""):
	""" build a string with arbitrary arguments.

	Positional Args:
		message: original string to build on.
		values: individual arguments to be added to the string.
	Keyword only Args:
		sep: how to divide the parts of the string if you want. (ie. ',' or "/")
	"""
	if not values:
		return message
	else:
		return message.join(str(x)  for x in values)