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

### Instruction:
 Katika sarakasi, kinyonga ana maballoni 3 dazeni kwenye kamba mkononi mwake. Watoto 3 na wasichana 12 hununua kila mmoja baloni. Kinyonga anashikilia maballoni mangapi bado?


### Response:
 Kinyonga anashikilia maballoni 3 x 12 = <<3*12=36>>36.
Watoto hawa wananunua maballoni: 3 + 12 = <<3+12=15>>15 watoto.
Baada ya watoto kununua maballoni, kinyonga anashikilia maballoni haya mkononi mwake 36 - 15 = 21.