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

### Instruction:
A group of bedbugs infested an old mattress. Every day, the number of bedbugs would triple. After four days, there were 810 bedbugs burrowing into the mattress. How many bedbugs did the group start with?

### Response:
 Siku ya tatu, kulikuwa na wadudu wa kitanda theluthi moja ya idadi ya wadudu wa siku ya nne, hivyo kulikuwa na wadudu wa kitanda 810 / 3 = <<810/3=270>>270.
Siku ya pili, kulikuwa na wadudu wa kitanda theluthi moja ya wadudu wa siku ya tatu, hivyo kulikuwa na wadudu wa kitanda 270 / 3 = <<270/3=90>>90.
Siku ya kwanza, kulikuwa na wadudu wa kitanda 90 / 3 = <<90/3=30>>30 katika kikundi kilichoanza.