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

### Instruction:
My dog was born when I was 15 years old. Two years from now, my dog will turn 4 years old. How old am I now?

### Response:
 Miaka miwili kutoka sasa, mbwa wangu atakuwa na miaka 4, hivyo mbwa wangu ana miaka 4 - 2 = <<4-2=2>>2 sasa.
Hivyo, mimi nina miaka 15 + 2 = <<15+2=17>>17 sasa.