#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <numeric>
#include <stack>
#include <utility>

#define MAX 10000

using namespace std;
typedef long long int lint;
typedef pair<int, int> Pii;
typedef pair<int, int> PII;

int bit(int N) {
	int ret = 0;
	for (int i = 1; i <= (1 << 16); i <<= 1) {
		ret += ((N & i) ? 1 : 0);
	}
	return ret;
}

int hoge(int N)
{
	int pos, step, jump, ret = -1;
	vector<bool> visited(N + 1, false);

	stack<Pii> st;
	
	st.push(Pii(1, 1));
	while (!st.empty()) {
		pos = st.top().first;
		step = st.top().second;
		visited[pos] = true;
		if (pos == N) {
			if (ret < 0 || ret > step)
				ret = step;
			visited[pos] = false;
		}
		st.pop();
		
		jump = bit(pos);
		if (pos + jump <= N)
			if(!visited[pos + jump])
				st.push(Pii(pos + jump, step + 1));
		if (pos - jump > 0)
			if (!visited[pos - jump])
				st.push(Pii(pos - jump, step + 1));
	}

	return ret;
}

int N;
int ans = 99999999;

vector<int> visited(MAX + 1, 99999999);

void rec(int i, int step)
{
	if (i <= 0 || i > N)
		return;
	if (i == N && step < ans) {
		ans = step;
		return;
	}
	else if (visited[i] < step)
		return;
	else
		visited[i] = step;
	
	rec(i + bit(i), step + 1);
	rec(i - bit(i), step + 1);
}

int main()
{
	cin >> N;
	rec(1, 1);
	cout << ans << endl;
}