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

### Instruction:
Greg's PPO algorithm obtained 90% of the possible reward on the CoinRun environment. CoinRun's maximum reward is half as much as the maximum ProcGen reward of 240. How much reward did Greg's PPO algorithm get?

### Response:
Half of much as much as 240 is 240/2=<<240/2=120>>120 reward
90% of 120 is 120*.9=<<120*.9=108>>108 reward
Greg's PPO algorithm got 108 reward from CoinRun.
#### 108