Tickets for Guang Zhouta are graded. The 84th floor of the Sightseeing Hall (* * * meters) is adult 150 yuan, the student 120 yuan and the child 100 yuan. The 66th floor (* * * meters) is 100 yuan, 65 yuan and 50 yuan, and the 32nd floor (* * * meters) is 50 yuan, with 35 yuan and 30 yuan respectively. thank you