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

### Instruction:
 安妮从家走了5个街区到公交车站。她乘公交车去了咖啡店，路上经过了7个街区。后来，她以同样的方式回到了家。安妮总共走了多少个街区？


### Response:
 安妮乘公交车走了7个街区 + 步行5个街区 = <<7+5=12>>12个街区。
她的往返路程共计12个街区 x 2 = <<12*2=24>>24个街区。