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

### Instruction:
 菲奥娜和凯西共享他们拥有的连帽衫。他们两个人一共拥有八件连帽衫。凯西比菲奥娜多拥有两件。菲奥娜拥有多少件连帽衫？


### Response:
 设菲奥娜拥有的连帽衫数量为H。
凯西拥有H + 2件连帽衫。
他们一共拥有H + H + 2 = 2H + 2 = 8件连帽衫。
因此，2H = 8 - 2 = 6件连帽衫。
所以，菲奥娜拥有H = 6 / 2 = <<6/2=3>>3件连帽衫。