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

### Instruction:
Olivia and Nigel are traveling in Asia.  Olivia has $112 and Nigel has $139. If together they buy six one day passes to a tourist attraction for $28 per ticket, how much money do they have left?

### Response:
 Wana 112+139=$<<112+139=251>>251
Tiketi sita zinagharimu 6*28=$<<6*28=168>>168
Watakua na pesa zilizobaki ni 251-168=$<<251-168=83>>83.