#include <iostream>
using namespace std;

int main(){
   int f[] = {3,5,17,257,65537};
   int a,ans = 0;
   cin >> a;
   for(int i = 0;i < 30;i++){
      for(int j = 0;j < 32;j++){
         long long x = (1 << i);
         for(int k = 0;k < 5;k++) if(j >> k & 1) x *= f[k];
         if(x >= 3 && x <= a) ans++;
      }
   }
   cout << ans << endl;
}