PROGRAMMING:Compare the size of three integers with a pointer
This is a programming problem template. Please write the title description here. For example, input 3 integers and output them in descending order. Compile a function with a pointer variable as an argument.
###Input format:
Please write the input format here. For example: input three integers a, B, C in one line, which are no more than 1000.
###Output format:
Please describe the output format here. For example: output 3 integers from small to large.
###Input example:
Here is a set of inputs. For example:
```in
25 45 -12
```
###Output example:
The corresponding output is given here. For example:
```out
-12 25 45
```
answer：If there is no answer, please comment
###Input format:
Please write the input format here. For example: input three integers a, B, C in one line, which are no more than 1000.
###Output format:
Please describe the output format here. For example: output 3 integers from small to large.
###Input example:
Here is a set of inputs. For example:
```in
25 45 -12
```
###Output example:
The corresponding output is given here. For example:
```out
-12 25 45
```
answer：If there is no answer, please comment