#include <bits/stdc++.h>

using namespace std;
#define SZ(x) (int) (x).size()
#define REP(i, n) for(int i = 0; i < (n); i++)
#define FOR(i, a, b) for(auto i = (a); i < (b); i++)
#define For(i, a, b, c) \
    for(auto i = (a); i != (b); i += (c))
#define REPR(i, n) for(auto i = (n) -1; i >= 0; i--)
#define ALL(s) (s).begin(), (s).end()
#define so(V) sort(ALL(V))
#define rev(V) reverse(ALL(V))
#define uni(v) v.erase(unique(ALL(v)), (v).end())
#define eb emplace_back

typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef vector<vi> vvi;
typedef vector<vll> vvll;
typedef pair<int, int> PI;
typedef pair<ll, ll> PL;
const double EPS = 1e-6;
const int MOD = 1e9 + 7;
const int INF = (1 << 30);
const ll LINF = 1e18;
const double math_PI = acos(-1);

template<typename T>
vector<T> make_v(size_t a){
    return vector<T>(a);
}

template<typename T, typename... Ts>
auto make_v(size_t a, Ts... ts){
    return vector<decltype(make_v<T>(ts...))>(
            a, make_v<T>(ts...));
}

template<typename T, typename V>
typename enable_if<is_class<T>::value == 0>::type fill_v(
        T &t, const V &v){
    t = v;
}

template<typename T, typename V>
typename enable_if<is_class<T>::value != 0>::type fill_v(
        T &t, const V &v){
    for(auto &e: t) fill_v(e, v);
}

template<class T>
bool chmax(T &a, const T &b){
    if(a < b){
        a = b;
        return true;
    }
    return false;
}

template<class T>
bool chmin(T &a, const T &b){
    if(a > b){
        a = b;
        return true;
    }
    return false;
}

template<typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p){
    cin >> p.first >> p.second;
    return is;
}

template<typename T>
istream &operator>>(istream &is, vector<T> &vec){
    for(T &x: vec) is >> x;
    return is;
}

template<typename T>
string join(vector<T> &vec, string splitter){
    stringstream ss;
    REP(i, SZ(vec)){
        if(i != 0) ss << splitter;
        ss << vec[i];
    }
    return ss.str();
}

template<typename T>
ostream &operator<<(ostream &os, vector<T> &vec){
    os << join(vec, " ");
    return os;
}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    ll S;
    cin >> S;
    vll ans;
    while(S > 0){
        ll a = sqrt(S);
        if(a * a > S){
            a--;
        }
        if((a + 1) * (a + 1) <= S){
            a++;
        }
        S -= a * a;
        ans.push_back(a * a);
    }
    cout << SZ(ans) << endl;
    cout << ans << endl;
    return 0;
}