PROGRAMMING:Seeking maximum and minimum
Find the maximum and minimum of any seven numbers.
###Input format:
Enter seven integers on a line, with one space between the data.
###Output format:
Output in the order of "max = maximum, min = minimum" in one line, where the maximum and minimum values are output as is.
###Input example:
```in
1 2 9 5 4 6 7
```
###Output example:
```out
max=9,min=1
```
answer：If there is no answer, please comment
###Input format:
Enter seven integers on a line, with one space between the data.
###Output format:
Output in the order of "max = maximum, min = minimum" in one line, where the maximum and minimum values are output as is.
###Input example:
```in
1 2 9 5 4 6 7
```
###Output example:
```out
max=9,min=1
```
answer：If there is no answer, please comment