#include <iostream>
#include <algorithm>
#include <cstdio>
#include <queue>
#include <vector>

using namespace std;

typedef long long ll;

int main()
{
    int f[5]={3,5,17,257,65537};
    int a;
    cin>>a;
    priority_queue<ll,vector<ll>,greater<ll> > k;
    ll prev=-1;
    for(int ctr1=1;ctr1<32;ctr1++){
        ll t=1;
        for(int ctr2=0;ctr2<5;ctr2++){
            if(1<<ctr2 & ctr1)
               t*=f[ctr2];
        }
        //cout<<t<<endl;
        k.push(t);
    }
    int rez=0;
    k.push(2);
    while(true){
        ll t=k.top();
        //cout<<t<<endl;
        k.pop();
        if(t==prev){
            continue;
        }
        prev=t;
        if(t>a)
            break;
        if(t<=a && t>=3)
        rez++;
        k.push(t*2);
    }
    cout<<rez;
    return 0;
}