#include<bits/stdc++.h>
using lint=long long;
int main(){
    std::cin.tie(nullptr);std::ios_base::sync_with_stdio(false);
    std::cout.setf(std::ios_base::fixed);std::cout.precision(15);
    lint n;std::cin>>n;
    std::vector<lint>dist(n+1,-2);
    dist.at(1)=0;
    std::vector<lint>que;
    que.push_back(1);
    for(lint i=0;i<(lint)que.size();){
        lint x=que.at(i++);
        lint pc=__builtin_popcountll(x);
        for(lint y:{x-pc,x+pc}){
            if(y<=0||n<y||dist.at(y)!=-2)continue;
            dist.at(y)=dist.at(x)+1;
            que.push_back(y);
        }
    }
    std::cout<<dist.at(n)+1<<'\n';
}