def print_running_report(current_time, start_time, num_of_first_pages):
    """
    prints  details about the run:
     "run ended after: 0.34 minutes, ran on 2 names"

    :param current_time: current time.
    :param start_time: start time of the run.
    :param num_of_first_pages: number of first pages drawn.
    :return: the time in minutes took to run (String)

    """
    time_in_minutes = "{:.2f}".format((current_time - start_time) / 60)
    print("run ended after:", time_in_minutes, "minutes")
    print("ran on", num_of_first_pages, "names")
    return time_in_minutes