10491: ABC106 —— B - 105
[Creator : ]
Description
The number $105$ is quite special - it is odd but still it has eight divisors. Now, your task is this: how many odd numbers with exactly eight positive divisors are there between $1$ and $N$ (inclusive)?
Input
Input is given from Standard Input in the following format:
```
$N$
```
```
$N$
```
Output
Print the count.
Constraints
- $N$ is an integer between $1$ and $200$ (inclusive).
Sample 1 Input
105
Sample 1 Output
1
Among the numbers between 1 and 105, the only number that is odd and has exactly eight divisors is 105.
Sample 2 Input
7
Sample 2 Output
0
1 has one divisor. 3, 5 and 7 are all prime and have two divisors. Thus, there is no number that satisfies the condition.