PROGRAMMING:Exchange the values of a and B
Exchange the values of variables A and B. if the input value of a is 1 and the value of B is 5, the output value of a is 5 and the value of B is 1.
###Input format:
Enter two integers separated by a space.
###Output format:
In one line, output in the format of "a = x, B = y", where x and y are output as is without width control.
###Input example:
```in
1 5
```
###Output example:
```out
a=5,b=1
```
answer：If there is no answer, please comment
###Input format:
Enter two integers separated by a space.
###Output format:
In one line, output in the format of "a = x, B = y", where x and y are output as is without width control.
###Input example:
```in
1 5
```
###Output example:
```out
a=5,b=1
```
answer：If there is no answer, please comment