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 Pascal (FPC 2.6.2) (judge verdict: Accepted)

uses crt;
var
        n,i,j,k,h:integer;
begin
        read(n);
        h:=0;
        for i:=1 to n do
            if i mod 2=1 then
               begin
                 k:=0;
                 for j:=1 to n do
                     if i mod j =0 then inc(k);
                 if k=8 then inc(h);
               end;
        write(h);
       // readln;
       // readln;
end.