PROGRAMMING:Credit statistics
Since joining ACM laboratory, the ability of self-learning has become stronger. Little C's after-school life is either in the laboratory or in the study room, because little c wants to get good grades in the final exam and get a first-class scholarship. Small C has n courses in a semester, each course has very good results. So small C also has a good credit. Little c wants to know the situation after sorting all the credits.
###Input format:
Multiple sets of test data, each input an integer n, and then the corresponding credit m of N courses.
(1<=n<=20,0<=m<=5)
###Output format:
Each group of data corresponding to a line of output, credits (retain 2 decimal places) from large to small output, each credit separated by a space.
###Input example:
Here is a set of inputs. For example:
```in
3 3.5 4.0 4.5
3 4.5 3.5 4.5
```
###Output example:
The corresponding output is given here. For example:
```out
4.50 4.00 3.50
4.50 4.50 3.50
```
answer：If there is no answer, please comment
###Input format:
Multiple sets of test data, each input an integer n, and then the corresponding credit m of N courses.
(1<=n<=20,0<=m<=5)
###Output format:
Each group of data corresponding to a line of output, credits (retain 2 decimal places) from large to small output, each credit separated by a space.
###Input example:
Here is a set of inputs. For example:
```in
3 3.5 4.0 4.5
3 4.5 3.5 4.5
```
###Output example:
The corresponding output is given here. For example:
```out
4.50 4.00 3.50
4.50 4.50 3.50
```
answer：If there is no answer, please comment