Problem:
Score: 200 points

Problem Statement

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)?

Constraints

N is an integer between 1 and 200 (inclusive).

Input

Input is given from Standard Input in the following format:

N

Output

Print the count.

Sample Input 1

105

Sample Output 1

1

Among the numbers between 1 and 105, the only number that is odd and has exactly eight divisors is 105.

Sample Input 2

7

Sample Output 2

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.

Solution in JavaScript (Node.js 12.16.1) (judge verdict: Accepted)

function Main(input) {
    input = input.trim().split("\n").map(function(x) { return x.split(" ")});
    let N = parseInt(input[0][0], 10);

    let ans = 0;
    if (N >= 3*5*7) ans++;
    if (N >= 3*5*11) ans++;
    if (N >= 3*5*13) ans ++;
    if (N >= 27*5) ans ++;
    if (N >= 27*7) ans ++;

    console.log(ans);
}





Main(require("fs").readFileSync("/dev/stdin", "utf8"));