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 1075765759
 747976826
 638486017
 58438190
 1285316221
 186925426
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 2000000000
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 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 holes[256] = {0};
int main() {
  holes['0'] = holes['4'] = holes['6'] = holes['9'] = holes['A'] = holes['D'] =
      1;
  holes['8'] = holes['B'] = 2;
  char str[100];
  long long n;
  cin >> n;
  sprintf(str, "%llx", n);
  int ans = 0;
  for (int i = strlen(str) - 1; i >= 0; i--) ans += holes[toupper(str[i])];
  cout << ans << '\n';
}
