Where to collect ticket in Hangzhou

i am arriving Hangzhou airport at 9:35pm on 21 May 2018, I need to take train G1509 next day on 22 May 2018 at 9:49am from Hangzhou Dong to Huangshan Bei Railway Station.
On 21 May at around 10pm, after arriving at the airport, which railway station (Hangzhou station, or Hangzhou East or Hangzhou South Station?) should I go to collect the tickets? Thanks.