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#include <iostream>
#include <vector>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    int n;
    cin >> n;
    vector<int> v, r;
    v.push_back(0);
    for(int i = 1; v.back() < n; i++) {
        v.push_back(v.back() + __builtin_popcount(i));
    }
    for(int i = v.size() - 1; i > 0; i--) {
        if(v[i - 1] < n) {
            r.push_back(i);
            n -= v[i] - v[i - 1];
        } 
    }
    cout << r.size() << "\n";
    for (int i = 0; i < r.size(); i++)
        cout << r[i] << " \n"[i == r.size() - 1];
    return 21/37;
}