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

### Instruction:
 卡门之前有28只猫和18只狗，然后她送走了其中3只猫。现在卡门比狗多多少只猫？


### Response:
 首先找出卡门现在还有多少只猫：28只猫 - 3只猫 = <<28-3=25>>25只猫
然后从猫的数量中减去狗的数量找出差异：25只猫 - 18只狗 = <<25-18=7>>7只猫多