143165576
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 1741
 619489590
 1199537418
 1075765759
 747976826
 638486017
 58438190
 1285316221
 186925426
 1180540990
 833393692
 1818960378
 2000000000
 0
 1309028227
 514714359
 624205168
 1795248373
 643201595
 1304312649

14 3 3 4 5 2 4 4 2 4 6 4 3 4 5 3 5 4 1 5 3 4 5 5 8
#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(false);
  int n;
  cin >> n;
  stringstream ss;
  string s;
  ss << hex << n;
  ss >> s;
  int ats = 0;
  for (int i = 0; i < s.size(); i++) {
    if (s[i] == '0' || s[i] == '6' || s[i] == '9' || s[i] == 'a' ||
        s[i] == 'd' || s[i] == '4')
      ats++;
    if (s[i] == 'b' || s[i] == '8') ats += 2;
  }
  cout << ats;
}
