#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;

int MB[1000007];
vector<int> wyn;

void moc(){
    for (int i=0; i<1007; i++){
        int x=i;
        int pot=1<<10;
        while (x>0){
            //cout<<i<<" "<<x<<" "<<pot<<"\n";
            if (pot<=x){
                x-=pot;
                MB[i]++;
            }
            pot/=2;
        }
    }
}

int main(){
ios_base::sync_with_stdio(0);
    cin.tie(0);
    int M; cin>>M;
    moc();
    //for (int i=0; i<100; i++) cout<<MB[i];
    int x=0;
    int i=0;
    while (x<M){
        i++;
        x+=MB[i];
    }
    //cout<<i<<endl;
    while(x>M){
        if (MB[i]<=x-M){
            x-=MB[i];
            //cout<<"-"<<i<<endl;
        }
        else{
            wyn.push_back(i);
        }
        i--;
    }
    while(i>0){
        wyn.push_back(i);
        i--;
    }
    cout<<wyn.size()<<"\n";
    for (int i=0; i<wyn.size(); i++) cout<<wyn[i]<<" ";
}