#define _USE_MATH_DEFINES
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>

//#include<bits/stdc++.h>



using namespace std;




int main() {
	
	int n;
	cin>>n;
	queue<int>p;
	vector<int>x(n+2);
	for(int i=0;i<n+1;i++)
		x[i]=-1;
	p.push(1);
	x[1]=1;
	while(p.size()){
		int v=p.front();
		int c=0,d=v;
		while(d){
			if(d%2)c++;
			d/=2;
		}
		if(v-c>0&&x[v-c]==-1){
			p.push(v-c);
			x[v-c]=x[v]+1;
		}
		if(v+c<=n&&x[v+c]==-1){
			p.push(v+c);
			x[v+c]=x[v]+1;

		}
		p.pop();
	}
	
	cout<<x[n]<<endl;

	
	
	return 0;
}