PROGRAMMING:Exercises
Input several lines, input two integers whose absolute value is not more than 100 in each line, and calculate the maximum number of the sum, difference and product of the two integers which is not more than 100.
###Input example:
```in
3 9
-5 15
22 7
```
###Output example:
```out
twenty-seven
twenty
twenty-nine
```
answer：If there is no answer, please comment
###Input example:
```in
3 9
-5 15
22 7
```
###Output example:
```out
twenty-seven
twenty
twenty-nine
```
answer：If there is no answer, please comment