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

### Instruction:
 安吉在商场买了比雪莉多三倍的椒盐脆饼。雪莉买的椒盐脆饼数量是巴里的一半。如果巴里买了12个椒盐脆饼，安吉买了多少个？


### Response:
 雪莉买了12/2=<<12/2=6>>6个椒盐脆饼
安吉买了6*3=<<6*3=18>>18个椒盐脆饼