Go back to Chongqing directly, because the transfer fare is more expensive, and the train ticket fare has the lowest mileage and decreasing rate. At least mileage is like the starting price of a taxi. If you can't reach the mileage, you have to pay for that kilometer. However, the farther the destination, the cheaper the fare per kilometer. And if you change cars, it is tantamount to recalculation. It's much more expensive.