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

### Instruction:
Jerry has a bunch of half-empty soda cans on his desk. He needs to drain all of them and put them in the recycling bin. He can carry four cans at once, and it takes him 30 seconds to drain those 4 cans. It takes him ten seconds each way to walk to the sink and recycling bin and then back to his desk. If there are 28 cans on Jerry's desk, how long does it take him to throw all of them away?

### Response:
Jerry has to walk to the sink/recycling bin 28 cans / 4 cans per walk = <<28/4=7>>7 walks
The round trip takes 10 seconds per way * 2 ways = <<10*2=20>>20 seconds per walk
It takes 30 seconds per walk + 20 seconds per walk = <<30+20=50>>50 seconds per walk
Counting all the walks, it will take Jerry 50 seconds per walk * 7 walks = <<50*7=350>>350 seconds
#### 350