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

int main() {
    ios_base::sync_with_stdio(0);
    int n;
    cin >> n;
    int res = 0;
    while(n > 0) {
        res++;
        n -= __builtin_popcount(res);
    }
    vector<int> ans;
    n = -n;
    for(int i=res;i>0;i--) {
        if(__builtin_popcount(i) <= n) n -= __builtin_popcount(i);
        else ans.push_back(i);
    }
    cout << ans.size() << '\n';
    for(auto v : ans) cout << v << ' ';
    cout << '\n';
}