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 PyPy3 (2.4.0) (judge verdict: Accepted)

N = int(input())

if N < 105:
    print(0)
else:
    res = 1
    for i in range(107, N+1, 2):
            sum = 0
            for j in range(1, i+1):
                if (i % j) == 0:
                    sum += 1
            if (sum == 8):
                res += 1
    print(res)