#include <bits/stdc++.h>
using namespace std;
int main(){
  long long N;
  cin >> N;
  if (N == 0){
    cout << -1 << endl;
  } else {
    vector<long long> A;
    for (int i = 40; i >= 0; i--){
      if ((N >> (i + 1) & 1) != (N >> i & 1)){
        A.push_back((long long) 1 << i);
      }
    }
    int M = A.size();
    cout << M << endl;
    for (int i = 0; i < M; i++){
      cout << A[i];
      if (i < M - 1){
        cout << ' ';
      }
    }
    cout << endl;
  }
}