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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() {
  map<int, int> s;
  s['0'] = 1, s['4'] = 1, s['6'] = 1, s['8'] = 2, s['9'] = 1, s['A'] = 1,
  s['B'] = 2, s['D'] = 1;
  unsigned int x, res = 0;
  char a[100];
  scanf("%u", &x), sprintf(a, "%X", x);
  for (int p = 0; a[p]; ++p) res += s[a[p]];
  printf("%u\n", res);
}
