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

### Instruction:
An online newspaper had listed 100 visitors in October. The number of visitors in November increased by 15%. There were 15 more visitors in December than in November. What is the total number of visitors for these three months?

### Response:
In November there were 100 x 115/100 = <<100*115/100=115>>115 visitors.
In December there were 115 + 15 = <<115+15=130>>130 visitors.
So, a total of 100 + 115 + 130 = <<100+115+130=345>>345 visitors listed in these three months.
#### 345