#include <iostream>
#include <vector>

using namespace std;

vector<int> popcnt_cache;
vector<unsigned int> cnt_cache;
int n;

int popcnt(int n){
    if(popcnt_cache[n]){
        return popcnt_cache[n];
    }
    int x=0;
    while(n){
        x+=n & 1;
        n >>= 1;
    }
    popcnt_cache[n]=x;
    return x;
}

void calc(int i, unsigned int cnt){
    if(cnt_cache[i]<=cnt) return;
    cnt_cache[i]=cnt;
    int p=popcnt(i);
    if(i+p<=n){
        calc(i+p, cnt+1);
    }
    if(i-p>0){
        calc(i-p, cnt+1);
    }
}

int main(){
    cin >> n;
    popcnt_cache=vector<int>(n+1, 0);
    cnt_cache=vector<unsigned int>(n+1, -1);
    calc(1, 1);
    cout << (int)cnt_cache[n] << endl;
    return 0;
}