11. Two trains depart from two cities at the same time, heading towards each other, and meet after 3.3 hours. If Train A departs 24 minutes earlier, then 3 hours after Train B departs, the two trains still need to travel 14 kilometers to meet; if Train B departs 36 minutes earlier, then 3 hours after Train A departs, the two trains still need to travel 9 kilometers to meet. The distance between the two cities is $\qquad$ kilometers.
Answer: 660