#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
    ll f[] = {3,5,17,257,65537};
    int a;
    cin>>a;
    int ans=0;
    for (int i=0;i<1<<5;i++) {
        ll n=1;
        for (int j=0;j<5;j++) {
            if (i&1<<j) n*=f[j];
        }
        if (n==1) n=4;
        while (n<=a) {
            ans++;
            n*=2;
        }
    }
    cout<<ans<<endl;
    return 0;
}