#include<iostream>
#include<vector>
using namespace std;
using ll=long long;
#define rep(i,n) for(int i=0;i<n;i++)
#define rrep(i,n) for(int i=(n)-1;i>=0;i--)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
template<class T> bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;}
template<class T> bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    ll N;
    cin>>N;
    if(N==0){
        cout<<-1<<"\n";
        return 0;
    }
    vector<ll>A;
    int k=0;
    bool flag=false;
    rrep(i,40){
        if(N>>i&1)flag=true;
        if(!flag)continue;
        if((N>>i&1)==1-k){
            A.push_back(1LL<<i);
            k=1-k;
        }
    }
    int M=A.size();
    cout<<M<<"\n";
    rep(i,M)cout<<A[i]<<" ";
    cout<<"\n";
}