Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Sun City has 1000 more than twice as many people as Roseville City. Roseville city has 500 less than thrice as many people as Willowdale city. If Willowdale city has 2000 people, how many people live in Sun City?

### Response:
 เมืองโรสวิลมีคน 3*2000-500=<<3*2000-500=5500>>5500 คน
เมืองซันมีคน 2*5500+1000=12000 คน