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

### Instruction:
A wildlife team is monitoring the number of birds in a park. There are 3 blackbirds in each of the park’s 7 trees. There are also 13 magpies roaming around the park. How many birds are in the park in total?

### Response:
 จำนวนนกทั้งหมดในสวนสาธารณะคือ 3 * 7 + 13 = <<3*7+13=34>>34 นก