143165576
 1919020031
 1204252996
 210637432
 724264821
 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>
int main() {
  int s;
  std::cin >> s;
  std::string hex = "";
  while (s != 0) {
    int temp = s % 16;
    s /= 16;
    if (temp >= 10) {
      hex.push_back(temp - 10 + 'A');
    } else
      hex.push_back(temp + '0');
  }
  int answ = 0;
  for (int i = 0; i < hex.size(); ++i) {
    if (hex[i] == 'A' || hex[i] == '6' || hex[i] == '0' || hex[i] == 'D' ||
        hex[i] == '4' || hex[i] == '9')
      answ++;
    else if (hex[i] == '8' || hex[i] == 'B')
      answ += 2;
  }
  std::cout << answ;
}
