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#include <bits/stdc++.h>
#define pb push_back

using namespace std;
typedef long long ll;

int main()
{
    ios_base::sync_with_stdio(0);
    ll n;
    cin >> n;

    ll a = 1;
    vector<ll> result;
    while (n > 0) {
        ll ones = __builtin_popcount(a);
        if (n - ones >= 0) {
            n -= ones;
            result.pb(a);
        } else {
            ll over = ones - n;
            ll i = result.size() - 1;
            result.pb(a);
            while (over > 0) {
                ll pom = __builtin_popcount(result[i]);
                if (over - pom >= 0) {
                    over -= pom;
                    result.erase(result.begin() + i);
                }
                i--;
            }
            n = 0;
        }
        a++;
    }

    reverse(result.begin(), result.end());
    cout << result.size() << endl;
    for (int i = 0; i < result.size(); ++i) {
        cout << result[i] << ' ';
    }
}