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#include <bits/stdc++.h>
using namespace std;
constexpr int maxN = 1e6+7;

int n,cnt[maxN];
vector<int>ans;

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

	cin>>n;
	for(int i=1;i<=n;i++)
		cnt[i] = cnt[i-1] + __builtin_popcount(i);
	int j = n, l = n;
	while(l){
		while(cnt[j-1] >= l)
			j--;
		ans.push_back(j);
		l -= __builtin_popcount(j);
	}
	cout<<ans.size()<<"\n";
	for(int x:ans)
		cout<<x<<' ';
	cout<<"\n";
}