PROGRAMMING:Using reference variables as formal parameters, three integers can be output from small to large

Using reference variables as formal parameters, three integers can be output from small to large
###Input format:
Please write the input format here. For example: input three integers in one line.
###Output format:
Please describe the output format here. For example: output from small to large.
###Input example:
Here is a set of inputs. For example:
```in
25 41 2
```
###Output example:
The corresponding output is given here. For example:
```out
2 25 41
```







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