Guangzhou Guangming expressway toll collector treatment

Guangzhou Guangming Expressway toll collectors earn 3500 yuan a month. Deduct about 1600 yuan, which is more than the monthly income of toll collectors 1000 yuan. If it is the stationmaster on duty, it is about 2000 yuan more than the monthly income of toll collectors. The work is three shifts, each shift is 8 hours. I have to work the night shift.