According to the authoritative Hanafi school, what is the exact number of words in the Adhan and the Iqamah?

Adhan and Iqamah: Phrasing, Echoing, and Conduct

• 15 words for Adhan and 15 words for Iqamah.
• 15 words for Adhan and 17 words for Iqamah.
• 17 words for Adhan and 15 words for Iqamah.
• 19 words for Adhan and 17 words for Iqamah.