6. From four different digits, two four-digit numbers were formed - the largest of all possible and the smallest of all possible (digits in the number cannot be repeated). The sum of these numbers is 10477. What could the original digits have been?

## 6th grade
83.6. Answer. These are the digits $7,4,3,0$.

保留源文本的换行和格式，翻译结果如下：

83.6. Answer. These are the digits $7,4,3,0$.