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

### Instruction:
David has a store where he sells cell phones. When he takes inventory at the end of the day, he notices that he has 10 Samsung cell phones but he started the day with 14 Samsung cell phones. Then he notices that he has 5 iPhones and in the initial inventory, but started with 8. His staff then told him that in the afternoon they realized that 2 Samsung cell phones were damaged and 1 iPhone had a manufacturing defect in the screen, so they threw these out during the day. What was the total number of cell phones that were sold today?

### Response:
 Hesabu ya awali halisi ya simu za Samsung ilikuwa 14, lakini kulikuwa na simu 2 zenye kasoro hivyo 14 - 2 = <<14-2=12>>12 ni hesabu ya awali ya simu za Samsung zilizofanya kazi.
Hesabu ya awali halisi ya simu za iPhone ilikuwa 8, lakini kulikuwa na simu moja yenye kasoro, hivyo 8 - 1 = <<8-1=7>>7 ni hesabu ya awali halisi ya simu za iPhone zilizofanya kazi.
Jumla ya simu za Samsung zilizouzwa ni 12 - 10 = <<12-10=2>>2.
Jumla ya simu za iPhone zilizouzwa ni 7 - 5 = <<7-5=2>>2.
Jumla ya simu zilizouzwa ni 2 za Samsung + 2 za iPhone = <<2+2=4>>4 simu.