#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif

int main()
{
    int64_t s;
    cin >> s;

    vector<int64_t> as;

    int64_t x = 1;
    while ((x + 1) * (x + 1) <= s)
    {
        x++;
    }

    while (0 < s)
    {
        while (x * x <= s)
        {
            as.push_back(x * x);
            s -= x * x;
        }

        x = 1;
        while ((x + 1) * (x + 1) <= s)
        {
            x++;
        }
    }

    cout << as.size() << endl;
    for (auto &&a : as)
    {
        cout << a << ' ';
    }
    cout << endl;

    return 0;
}