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// Daniel Grzegorzewski
// while (clock()<=69*CLOCKS_PER_SEC)
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
// #pragma GCC optimize("Ofast")
// #pragma GCC target("avx,avx2,fma")

#define MP make_pair
#define PB push_back
#define ST first
#define ND second

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set =
    tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

//X.find_by_order(k); - zwraca iterator na k-ty element (numeracja od zerowego)
//X.order_of_key(k); - zwraca liczbę elementów ostro mniejszych niż k

typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VII;
typedef long long LL;

void init_ios() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
}

auto random_address = [] { char *p = new char; delete p; return uint64_t(p); };
 
const uint64_t SEED = chrono::steady_clock::now().time_since_epoch().count() * (random_address() | 1);
mt19937_64 rng(SEED);

const int N = (int)1e6 + 3;

int n, a[N];
VI res;

int main() {
  init_ios();
  cin >> n;
  for (int i = 1; i < N; ++i)
    a[i] = a[i-1] + __builtin_popcount(i);
  int id = 0;
  while (a[id] < n)
    ++id;
  while (n) {
    res.PB(id);
    n -= __builtin_popcount(id);
    while (a[id] >= n)
      --id;
    ++id;
  }
  cout<<res.size()<<"\n";
  for (int x: res)
    cout<<x<<" ";
  cout<<"\n";
}