A certain online game offers a ``ten-draw'' card-pulling mechanism. ``Ten-draw'' means the system automatically performs ten card-pulling actions. If each ``ten-draw'' requires 1500 tokens, the probability of drawing a gold card is 2\% for the first nine draws and 10\% for the tenth draw. A certain student has 23000 tokens and continuously uses ``ten-draw'' until unable to draw anymore. The expected value of the number of gold cards drawn is (13-1)(13-2) cards.