#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

inline ll sqrt(ll x) {
  ll ok = 0, ng = 2e9;
  while (ng - ok > 1) {
    ll mid = (ok + ng) / 2;
    (mid * mid <= x ? ok : ng) = mid;
  }
  return ok;
}

int main() {
  ll s;
  cin >> s;
  vector<ll> ans(0);
  while (s) {
    ll x = sqrt(s);
    ans.push_back(x * x);
    s -= x * x;
  }
  cout << ans.size() << endl;
  for (ll x : ans) cout << x << " ";
  cout << endl;
  return 0;
}