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

### Instruction:
 怀亚特有10个蓝色信封。他比蓝色信封少4个黄色信封。怀亚特总共有多少个信封？


### Response:
 怀亚特有10 - 4 = <<10-4=6>>6个黄色信封。
他总共有10个蓝色信封 + 6个黄色信封 = <<10+6=16>>16个信封。