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

### Instruction:
Kaylee needs to sell 33 boxes of biscuits. So far, she has sold 12 boxes of lemon biscuits to her aunt, 5 boxes of chocolate biscuits to her mother, and 4 boxes of oatmeal biscuits to a neighbor. How many more boxes of biscuits does Kaylee need to sell?

### Response:
 Kaylee ameuza masanduku 12 + 5 + 4 = <<12+5+4=21>>21 ya biskuti.
Kiasi anachohitaji kuuza ili kufikia lengo ni 33 − 21 = <<33-21=12>>12.