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

### Instruction:
 Olivia na Nigel wanatembea Asia. Olivia ana $112 na Nigel ana $139. Ikiwa pamoja wanunue tiketi sita za siku moja kwa kivutio cha watalii kwa bei ya $28 kwa tiketi, watakua na pesa ngapi zilizobaki?


### 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.