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;
int cnt[1000];
int main() {
  int a;
  char num[100];
  cin >> a;
  sprintf(num, "%x", a);
  cnt['0'] = 1;
  cnt['4'] = 1;
  cnt['6'] = 1;
  cnt['8'] = 2;
  cnt['9'] = 1;
  cnt['a'] = 1;
  cnt['b'] = 2;
  cnt['d'] = 1;
  int ans = 0;
  char *p = num;
  while (*p) ans += cnt[*p++];
  cout << ans << endl;
  return 0;
}
