def instructions(random_numbers):
  """
  Defines the student instructions written to `config.yaml`.
  The instructions must be in HTML format.
  """

  # Notice the indentations,
  # as this is going to get written to a YAML file.
  return \
    u"  <p>\n" + \
    u"    Laske lausekkeen `{}/d^{}+{}` arvo, kun `d=3`.\n".format(random_numbers[0],random_numbers[1],random_numbers[2],) + \
    u"    Anna vastaus kokonaislukuna tai murtolukuna `a/b`,\n" + \
    u"    missä `a` ja `b` ovat kokonaislukuja.\n" + \
    u"  </p>"