#include <iostream>
#include <vector>

using namespace std;

int main()
{
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    long long S, l, c, r;
    vector<long long> ans;
    cin >> S;

    while (S != 0)
    {
        for (l = 1, r = 1'000'000'001; l + 1 < r; )
        {
            c = (l + r) / 2;
            if (c * c <= S) l = c;
            else r = c;
        }

        ans.push_back(l * l);
        S -= l * l;
    }

    cout << ans.size() << '\n' << ans[0];
    for (int i = 1; i != ans.size(); ++i) cout << ' ' << ans[i];
    cout << '\n';
    return 0;
}