from datetime import datetime

def bluebook_exhibit(r, exhibit_no):
    return (
        f"Exhibit A-{exhibit_no}. {r['agency']}, "
        f"{r['title']}, FOIA Electronic Reading Room, "
        f"{r['url']} (retrieved {datetime.utcnow().strftime('%b %d, %Y')})."
    )

def table_of_authorities(results):
    return [
        f"Exhibit A-{i+1}: {r['agency']} — {r['title']}"
        for i, r in enumerate(results)
    ]