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

### Instruction:
Cary walks 3 miles round-trip to the grocery store, where he buys and eats a candy bar with 200 calories. If Cary burns 150 calories per mile walked, what's Cary's net calorie deficit (expressed as a positive number)?

### Response:
 Kwanza, tunapaswa kujua ni kalori ngapi Cary alizichoma kwa kutembea maili 3. Hii inafanywa kwa kuzidisha kalori zilizochomwa kwa kila maili na idadi ya maili aliyotembea: 150 kalori/maili * 3 maili = <<150*3=450>>450 kalori.
Kwa kuwa Cary alikula kibarua cha sukari chenye kalori 200, nakisi yake ya kalori ni 450 - 200 = <<450-200=250>>250 kalori.