#include<bits/stdc++.h>
//https://blog.csdn.net/sandwichsauce/article/details/79847953
using namespace std;
int func(int x)
{
   int count = 0;
   while (x)
   {
     count++;
     x = x&(x - 1);
   }
  return count;
}
int main()
{
  cout << func(2048) << endl;
  return 0;
}