import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		long n = sc.nextLong();
		sc.close();

		List<Long> list = new ArrayList<>();
		for (int i = 39; i >= 0; i--) {
			if ((n >> i & 1) == 1 ^ list.size() % 2 == 1) {
				list.add(1L << i);
			}
		}
		if (list.isEmpty()) {
			System.out.println(-1);
		} else {
			System.out.println(list.size());
			StringBuilder sb = new StringBuilder();
			for (long e : list) {
				sb.append(e).append(' ');
			}
			sb.deleteCharAt(sb.length() - 1);
			System.out.println(sb.toString());
		}
	}
}