#include <iostream>

using namespace std;

int a[2019];

int main() {
    a[1] = 1;
    for (int i = 2; i <= 2019; i++) {
        a[i] = a[i / 2] + i % 2;
    }
    int ans = 0;
    for (int i = 1; i <= 2019; i++) {
        if (a[i] == 7) {
            ans++;
        }
    }
    cout << ans;
    return 0;
}