Arrange the following countries in descending order of population size.
The following countries arranged in descending order of population size would be: China, Brazil, Australia.
Australia, China, Brazil
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Arrange the following countries in descending order of population size.

### Input:
Australia, China, Brazil

### Response:
The following countries arranged in descending order of population size would be: China, Brazil, Australia.