PROGRAMMING:Chicken and rabbit in the same cage (higher education society, exercise 3-7 of Python programming foundation and application)
Chicken and rabbit with the cage problem, from the keyboard to read the number of feet, head, output the number of chickens and rabbits.
###Input format:
Number of feet < br > 1
Number of heads < br > 1
###Output format:
Number of chickens < br > 0
Number of rabbits < br > 0
###Input example:
Here is a set of inputs. For example:
```in
ninety-four
thirty-five
```
###Output example:
```out
twenty-three
twelve
```
answer：If there is no answer, please comment
###Input format:
Number of feet < br > 1
Number of heads < br > 1
###Output format:
Number of chickens < br > 0
Number of rabbits < br > 0
###Input example:
Here is a set of inputs. For example:
```in
ninety-four
thirty-five
```
###Output example:
```out
twenty-three
twelve
```
answer：If there is no answer, please comment