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 main() {
  long dec;
  int rem;
  long long arr[100000];
  int i = 0;
  cin >> dec;
  while (dec > 0) {
    rem = dec % 16;
    if (rem > 9) {
      switch (rem) {
        case 10:
          arr[i] = 6;
          break;
        case 11:
          arr[i] = 8;
          break;
        case 12:
          arr[i] = 1;
          break;
        case 13:
          arr[i] = 6;
          break;
        case 14:
          arr[i] = 1;
          break;
        case 15:
          arr[i] = 1;
          break;
      }
    } else {
      arr[i] = rem;
    }
    dec = dec / 16;
    i++;
  }
  long long sum = 0;
  for (int j = 0; j < i; j++) {
    if (arr[j] == 0) sum++;
    if (arr[j] == 1) continue;
    if (arr[j] == 2) continue;
    if (arr[j] == 3) continue;
    if (arr[j] == 4) sum++;
    if (arr[j] == 5) continue;
    if (arr[j] == 6) sum++;
    if (arr[j] == 7) continue;
    if (arr[j] == 8) sum += 2;
    if (arr[j] == 9) sum++;
  }
  cout << sum << endl;
}
