16. As shown in the figure, it is a toy box for an electronic bug. The toy box is a rectangle, with a length of 50 cm and a width of 40 cm. The crawling speed of the electronic bug is 3 cm per second. If it can only crawl along the straight lines in the figure, then the number of ways it can take to go from the starting point to the end point in 30 seconds is $\qquad$ kinds.
【Analysis】The electronic worm crawls a total of 90 cm, so the electronic worm must either go up or go right along the shortest path, as shown in the figure below, there are a total of 12 ways to do so.