#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define ALL(v) v.begin(),v.end()
typedef long long ll;

#include<bits/stdc++.h>
using namespace std;

vector<ll> divisor(ll x){
  set<ll> s;
  for(ll i=1;i*i<=x;i++){
    if(x%i==0){
      s.insert(i);
      s.insert(x/i);
    }
  }
  vector<ll> res;
  for(auto y:s) res.push_back(y);
  return res;
}

int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);

  ll n;
  cin>>n;
  if(n==0){
    cout<<-1<<endl;
    return 0;
  }
  
  vector<pair<ll,ll>> A;
  A.push_back({1,1});
  A.push_back({3,2});
  A.push_back({4,3});
  ll tmp=4;
  for(int i=3;i<=31;i++){
    tmp*=2;
    vector<ll> B=divisor(tmp-1);
    ll sum=accumulate(ALL(B),0LL);
    A.push_back({sum,tmp-1});
  }
  
  vector<ll> ANS;
  for(int i=31;i>=0;i--){
    if(n&(1<<i)){
      ANS.push_back(A[i].second);
      n^=A[i].first;
    }
  }
  int a=ANS.size();
  cout<<a<<endl;
  rep(i,a){
    if(i) cout<<" ";
    cout<<ANS[i];
  }
  cout<<endl;
  
  return 0;
}