#1094

#include <iostream>
using namespace std;

int main()
{
	int X;
	int sum = 64;
	int current = 64;
	int count = 0;

	cin >> X;

	while (sum > X)
	{
		current /= 2;

		if (sum - current >= X)
		{
			sum -= current;
		}
		else
			count++;
	}
	
	cout << count+1;

	return 0;
}