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/*
    Zadanie: Muzyka pop 2
    Autor: Tomasz Kwiatkowski
*/

#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back

using namespace std;
typedef long long ll;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    int s = 0;
    for (int i = 1; i <= n; ++i)
        s += __builtin_popcount(i);

    int p = n;
    vector<int> res;
    while (n) {
        while (s - __builtin_popcount(p) >= n)
            s -= __builtin_popcount(p--);
        res.pb(p);
        n -= __builtin_popcount(p);
        s -= __builtin_popcount(p--);
    }
    cout << res.size() << '\n';
    for (auto p : res)
        cout << p << ' ';
    cout << '\n';
    return 0;
}