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

### Instruction:
Before he lost one, Policeman O'Brien had 5 more than twice as many hats as fire chief Simpson. If fire chief Simpson has 15 hats, how many hats does Policeman O'Brien now have?

### Response:
Before he lost one, Policeman O'Brien had 5 more than twice as many hats as fire chief Simpson, for a total of 2*15+5=<<2*15+5=35>>35 hats.
One less than 35 is 35-1=<<35-1=34>>34 hats.
#### 34