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#include <bits/stdc++.h>
using namespace std;

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	
	priority_queue<int> pq;
	int n;
	cin >> n;
	
	int i = 1, s = 0;
	while (n){
		if (n - __builtin_popcount(i) >= 0){
			n -= __builtin_popcount(i);
			pq.push(i);
			++i;
		}
		else{
			n += __builtin_popcount(pq.top());
			pq.pop();
		}
	}
	
	int a = pq.size();
	cout << a << '\n';
	for (int i = 0; i < a; ++i){
		cout << pq.top() << ' ';
		pq.pop();
	}
}