PROGRAMMING:Cyclic structure
Keyboard input two integers a and B (greater than - 100 and less than + 100) a < B, filter all integers between the two numbers (excluding the two numbers) that meet the condition of "2 except 7", and output the sum of these integers.
Note: when the input data is not in (- 100100) range, there is no output.
###Input format:
Keyboard input two integers (greater than - 100 and less than + 100), separated by commas.
###Output format:
1) When two legal data (greater than - 100 and less than + 100) are entered,
Filter all the integers between two numbers that meet the condition of "2 except 7", and output the sum of these integers (excluding two input data).
2) When the input data exceeds the required range, there is no output.
###Input example:
```in
10,30
```
###Output example:
```out
thirty-nine
```
answer：If there is no answer, please comment
Note: when the input data is not in (- 100100) range, there is no output.
###Input format:
Keyboard input two integers (greater than - 100 and less than + 100), separated by commas.
###Output format:
1) When two legal data (greater than - 100 and less than + 100) are entered,
Filter all the integers between two numbers that meet the condition of "2 except 7", and output the sum of these integers (excluding two input data).
2) When the input data exceeds the required range, there is no output.
###Input example:
```in
10,30
```
###Output example:
```out
thirty-nine
```
answer：If there is no answer, please comment