#include "stdafx.h"
#include<iostream>
using namespace std;
int func(int x)
{
   int count = 0;
   while (x)
   {
     count++;
     x = x&(x - 1);
   }
  return count;
}
int main()
{
  cout << func(2015) << endl;
  return 0;
} 

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