17. The monster's battle mode is: 7 seconds preparation -2 seconds fire breathing - 7 seconds preparation -2 seconds fire breathing….. Ultraman Tiga's battle mode is: 11 seconds preparation - an instant laser - 11 seconds preparation - an instant laser....
The laser can only be effective when the monster is fire breathing, and hitting it will defeat the monster. Once, the monster and Ultraman Tiga met, and they started preparing at the same time, so the monster will be defeated by Ultraman Tiga in $\qquad$ seconds.
$44$