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

int possible[130000];

int binary(int x, int low, int high) {
    int mid;
    while (low < high) {
        mid = (low + high)/2;
        if (x > possible[mid])
            low = mid + 1;
        else
            high = mid;
    }
    return high;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    
    possible[0] = 0;
    int num = 0, i, power = 0, n;
    vector<int> numbers;
    cin >> n;
    while (power < n) {
        num++;
        i = num;
        while (i > 0) {
            if (i%2)
                power++;
            i /= 2;
        }
        possible[num] = power;
    }

    while (n>0) {
        num = binary(n, 1, num);
        numbers.push_back(num);
        n -= possible[num] - possible[num-1];
    }

    cout << numbers.size() << '\n';
    for (int i : numbers)
        cout << i << " ";
}