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

### Instruction:
A local bookshop is selling off its old inventory in order to bring in newer books. They currently have 743 books in their store. They sold 37 books in-store on Saturday and sold 128 books online. On Sunday, they sold twice as many books in-store and increased their online sales by 34 books. They also received a shipment of 160 books. How many books do they currently have?

### Response:
 Jumapili, waliuza vitabu mara mbili ya vile walivyouza dukani, ambavyo ni 2 * 37 = <<2*37=74>>74.
Waliuza vitabu 128 mtandaoni Jumamosi na wakaongeza idadi hiyo kwa vitabu 34 Jumapili, kwa jumla ya 128 + 34 = 162.
Mwishoni mwa wiki, walikuwa wameuza jumla ya vitabu 37 + 128 + 74 + 162 = <<37+128+74+162=401>>401.
Walikuwa na vitabu 743 mwanzoni, lakini kisha wakapokea usafirishaji wa vitabu 160. Hivyo, kwa sasa wana vitabu 743 - 401 + 160 = <<743-401+160=502>>502.