You can use the machine according to the following method: Click the number of the subway line you want to take on the screen and click your destination station. The machine then shows you the single ticket price. Please click the number of the tickets you want (no more than 9 tickets at a time) and then the total price of the tickets appears on the screen. Now you need to put a certain sum of notes or coins according to the total price into the slot on the machine. Well, you can take the change and tickets and go for the next step.

Well. it is suggest that you buy a through ticket at your starting station, because it is more convenient and the ticket fare is much lower than that you buy two tickets at your starting station and transfer station.