#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long ull;
typedef long double ld;
int dx[8] = { 1, 0, -1, 0, 1, 1, -1, -1 }, dy[8] = { 0, 1, 0, -1, 1, -1, 1, -1 };
const long long mod = 998244353;
const ll inf = 1LL << 60;
const int INF = 5e8;

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

    vector<ll> v;
    while (s) {
        ll n = sqrt(s);
        s -= n * n;
        v.push_back(n * n);
    }

    cout << v.size() << endl;
    for (auto i : v) {
        cout << i << " ";
    }
}