9498: ABC219 —— A - AtCoder Quiz 2
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Description
In the Kingdom of AtCoder, there is a standardized test of competitive programming proficiency.
An examinee will get a score out of $100$ and obtain a rank according to the score, as follows:
- Novice, for a score not less than $0$ but less than $40$;
- Intermediate, for a score not less than $40$ but less than $70$;
- Advanced, for a score not less than $70$ but less than $90$;
- Expert, for a score not less than $90$.
Takahashi took this test and got $X$ points.
Find the minimum number of extra points needed to go up one rank higher. If, however, his rank was Expert, print `expert`, as there is no higher rank than that.
An examinee will get a score out of $100$ and obtain a rank according to the score, as follows:
- Novice, for a score not less than $0$ but less than $40$;
- Intermediate, for a score not less than $40$ but less than $70$;
- Advanced, for a score not less than $70$ but less than $90$;
- Expert, for a score not less than $90$.
Takahashi took this test and got $X$ points.
Find the minimum number of extra points needed to go up one rank higher. If, however, his rank was Expert, print `expert`, as there is no higher rank than that.
Input
Input is given from Standard Input in the following format:
```
$X$
```
```
$X$
```
Output
Print the answer.
Constraints
- $0 \leq X \leq 100$
- $X$ is an integer.
- $X$ is an integer.
Sample 1 Input
56
Sample 1 Output
14
He got 56 points and was certified as Intermediate. In order to reach the next rank of Advanced, he needs at least 14 more points.
Sample 2 Input
32
Sample 2 Output
8
Sample 3 Input
0
Sample 3 Output
40
100
expert
He got full points and was certified as Expert. There is no rank higher than that, so print expert.