<prompt> Translate the following text to SwahiliBulgarias economy remains socialist . Price controls are McDonalds restaurants in Bulgaria sell the cheapest Big Macs in the world, and oil costs the same as in Saudi Arabia.  <response>: Mashirika ya McDonalds nchini Bulgaria yanauza Big Macs ya bei nafuu zaidi ulimwenguni, na bei ya mafuta ni sawa na Saudi Arabia. 