#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;

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

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