PROGRAMMING:Exchange the values of two variables and output them

Enter two integers and save them to variables A and B. exchange the values of the two variables and output them.
###Input format:
Enter two integers separated by a space.
###Output format:
Output the values of the two variables according to the example, separated by commas.
###Input example:
```in
32768 111
```
###Output example:
```out
a=111,b=32768
```







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