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#include <iostream>
#include <cmath>
using namespace std;
int tabela[500000] = {};
int tabbraklicz[1000] = {};
int tabusulicz[100] = {};
int main() {
    int x, brakliczb, l = 0, a = 0, f = 0, j, v = 0;
    bool list, go = true;
    cin >> x;
    for (int z = 0; z < 500000; z++) {
        int licz = 0;
        int rem;
        int n = z;
        while (n != 0) {
            rem = n % 2;
            n /= 2;
            licz += rem;
        }
        tabela[z] = licz;
    }
    int z = 0;
    int miej = 0;
    while (z < x) {
        miej++;
        z += tabela[miej];
    }
    if (z == x) {
        for (int o = miej; o > 0; o--) {
            cout << o << " ";
        }
    }
    else {
        int i = miej;
        for (int o = 1; o <= miej; o++) {
            int sum = 0, g = 0, pocz, rem, kon;
            i--;
            f++;
            tabbraklicz[f] = tabela[o];
            for (int y = 0; y < f; y++) {
                g = pow(2, y + 1);
                pocz = g - 1;
                kon = pow(2, y);
            }
            for (int q = pocz; q >= kon; q--) {
                int r = q;
                l = 0;
                while (r != 0) {
                    l++;
                    rem = r % 2;
                    r /= 2;
                    if (rem == 1) {
                        sum += tabbraklicz[l];
                    }
                }
                r = q;
                if (sum == z - x) {
                    //cout << sum;
                    l = 0;
                    while (r != 0) {
                        if (r % 2 == 1) {
                            v++;
                        }
                        rem = r % 2;
                        r /= 2;
                        l++;
                        int h = pow(2, q);
                        tabusulicz[l] = h - q + l;
                    }
                    if (v != 1) {
                        v--;
                    }
                    break;
                }

            }
        }
        cout << miej - v << endl;;
        for (int e = miej; e > 0; e--) {
            go = true;
            for (int g = v; g > 0; g--) {
                if (tabusulicz[g] == e) {
                    go = false;
                }
            }
            if (go) {
                cout << e << " ";
            }
        }
    }

    return 0;
}