#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define srep(i, s, n) for (int i=(s); i < (int)(n); i++)
#define all(v) v.begin(), v.end()
#define fore(i,x) for(auto i:x)
#define pb push_back

using vi=vector<int>;
using vvi=vector<vi>;
using vb=vector<bool>;
using vvb=vector<vb>;
using vs=vector<string>;
using vll=vector<long long>;
using vvll=vector<vll>;
using vc=vector<char>;
using vvc=vector<vc>;
using ll=long long;

void Yes(bool ok){ cout << (ok ? "Yes" : "No") << "\n";}

int main(){
    int N; cin >> N;
    vi move(N+1);
    srep(i,1,N+1){
        int cnt=0;
        rep(j,15){
            if(i & (1<<j)) cnt++;
        }
        move.at(i)=cnt;
    }
    vi dist(N+1,-1);
    queue<int> que;
    que.push(1);
    dist.at(1)=1;
    while(!que.empty()){
        int cur=que.front();
        que.pop();
        if(cur+move.at(cur)<=N && dist.at(cur+move.at(cur))==-1){
            dist.at(cur+move.at(cur))=dist.at(cur)+1;
            que.push(cur+move.at(cur));
        }
        if(cur-move.at(cur)>=1 && dist.at(cur-move.at(cur))==-1){
            dist.at(cur-move.at(cur))=dist.at(cur)+1;
            que.push(cur-move.at(cur));
        }
    }
    cout << dist.at(N) << "\n";
}