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

### Instruction:
Molly and her parents love to hang out at the beach on weekends. Molly spent the better part of the day at the beach and saw 100 people join them. At 5:00, 40 people left the beach. What's the total number of people at the beach if they all stayed until evening?

### Response:
 Idadi jumla ya watu pwani asubuhi ilikuwa familia ya Molly ya 3 + watu 100 wapya = <<3+100=103>>103
Ikiwa watu 40 waliacha kabla ya jioni, idadi mpya ni 103 - 40 = <<103-40=63>>63