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

### Instruction:
Fred had 212 sheets of paper. He received another 307 sheets of paper from Jane and gave Charles 156 sheets of paper. How many sheets of paper does Fred have left?

### Response:
 Alikuwa na karatasi 212 na alipokea karatasi 307 zaidi kwa jumla ya karatasi 212+307 = <<212+307=519>>519.
Alitoa karatasi 156 hivyo anabakiwa na karatasi 519-156 = 363.