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

### Instruction:
 艾莉有8双鞋。莱利比她少3双。他们一共有多少双鞋？


### Response:
 莱利比艾莉少3双鞋，所以8 - 3 = <<8-3=5>>5双鞋。
他们一共有艾莉的8双鞋 + 莱利的5双鞋 = <<8+5=13>>13双鞋。