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

### Instruction:
There are 3 rows of people relaxing at the beach. The first row is made up of 24 people until 3 people get up to wade in the water. 5 people from the second row, which originally held 20 people, go to join them. The third row is made up of 18 people. How many people are left relaxing on the beach?

### Response:
 Kwenye safu ya kwanza, sasa kuna watu 24 – 3 = <<24-3=21>>21.
Kwenye safu ya pili, sasa kuna watu 20 – 5 = <<20-5=15>>15.
Kwa hiyo jumla kuna 21 kwenye safu ya kwanza + 15 kwenye safu ya pili + 18 kwenye safu ya tatu = <<21+15+18=54>>54 watu.