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

const int f[] = { 3, 5, 17, 257, 65537 };

typedef long long ll;

signed main(){
  int A; cin >> A;
  ll ans = 0;
  for( int i = 0; i < 30; ++i )
    for( int j = 0; j < 1 << 5; ++j ){
      ll t = 1 << i;
      for( int k = 0; k < 5; ++k )
        if( j >> k & 1 )
          t *= f[ k ];
      if( 2 < t and t <= A )
        ++ans;
    }
  cout << ans << endl;
  return 0;
}