#include <cmath>
#include <iostream>
#include <vector>

int main() {
    long long s;
    std::cin >> s;

    std::vector<long long> a;

    while (s) {
        long long v = ::sqrtl(s);
        s -= v * v;
        a.push_back(v * v);
    }

    int n = a.size();
    std::cout << n << std::endl;
    for (int i = 0; i < n; ++i) {
        std::cout << a[i];
        if (i + 1 != n) std::cout << ' ';
    }
    std::cout << '\n';
}