#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define llong long long

vector<llong> fermi_primes{3, 5, 17, 257, 65537};

int main() {
    int a;
    cin >> a;

    vector<llong> cands;
    rep(i, 32) {
        bitset<5> bits(i);
        llong cand = 1;
        rep(j, 5) if(bits[j] == 1) cand*=fermi_primes[j];
        cands.push_back(cand);
    }
    int limit = cands.size();
    rep(i, limit) {
        int times = 2;
        while(true) {
            if(cands[i]*times > a) break;
            cands.push_back(cands[i]*times);
            times*=2;
        }
    }
    int result=0;
    rep(i, cands.size()) result += cands[i] <= a && cands[i] > 2;

    cout << result << "\n";
}