19. The airplane robot Roly is leading all the airplane robots to prepare for an air show. If each performance team consists of 12 airplane robots, there are still 5 airplane robots short; if each performance team consists of 15 airplane robots, there are still 8 airplane robots short. It is known that the total number of airplane robots is greater than 15 and less than 100. Therefore, there are $\qquad$ airplane robots.
$67$