import AO3

print("Work ID:")
thework = input()

url = "https://archiveofourown.org/works/" + str(thework)
workid = AO3.utils.workid_from_url(url)
work = AO3.Work(workid)

with open(f"{work.title}.epub", "wb") as file:
    file.write(work.download("EPUB"))