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>
using namespace std;
char a[1000005];
int n, i, ans;
int main() {
  cin >> n;
  sprintf(a, "%X", n);
  int len = strlen(a);
  for (i = 0; i < len; i++) {
    if (a[i] == '0' || a[i] == '4' || a[i] == '6' || a[i] == '9' ||
        a[i] == 'A' || a[i] == 'D')
      ans++;
    else if (a[i] == '8' || a[i] == 'B')
      ans += 2;
  }
  cout << ans << endl;
  return 0;
}
