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#include <iostream>
#include <vector>

using namespace std;

int count_onebits(int a) {
    int s = 0;
    while (a > 0) {
        s += (a % 2);
        a /= 2;
    }
    return s;
}

int main() {
    ios_base::sync_with_stdio(0);
    int n; cin >> n;
    vector<int> firsts(n+1);
    firsts[0] = 0;
    firsts[1] = 1;
    int curr_first = 1;
    int curr_first_onebits = 1;
    for (int i = 2; i <= n; ++i) {
        int j = i - curr_first_onebits;
        if (firsts[j] == curr_first) {
            curr_first++;
            curr_first_onebits = count_onebits(curr_first);
        }
        firsts[i] = curr_first;
    }
    
    vector<int> seq;
    int m = n;
    while (m > 0) {
        int el = firsts[m];
        seq.push_back(el);
        m -= count_onebits(el);
    }
    
    cout << seq.size() << "\n";
    for (auto it = seq.begin(); it != seq.end(); ++it)
        cout << *it << " ";
    cout << endl;
    
    return 0;
}