#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll linf=(1LL<<60) - 1;
const int inf=(1LL<<30) - 1;
const int mod=1000000007;
const int MOD=998244353;
const ll dx[] = {1, 0, -1, 0, 1, 1, -1, -1};
const ll dy[] = {0, 1, 0, -1, 1, -1, 1, -1};
#define overload4(a,b,c,d,name,...) name
#define rep1(n) for(long long _=0;_<n;++_)
#define rep2(i,n) for(long long i=0;i<n;++i)
#define rep3(i,a,b) for(long long i=a;i<b;++i)
#define rep4(i,a,b,c) for(long long i=a;i<b;i+=c)
#define rep(...) overload4(__VA_ARGS__,rep4,rep3,rep2,rep1)(__VA_ARGS__)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend() 
#define vec(type,name,...) vector<type> name(__VA_ARGS__)
#define vv(type,name,h,...) vector name(h,vector<type>(__VA_ARGS__))
#define vvv(type,name,h,w,...) vector name(h,vector(w,vector<type>(__VA_ARGS__)))
#define vvvv(type, name, h, w, n, ...) vector<vector<vector<vector<type>>>> name(h, vector<vector<vector<type>>>(w, vector<vector<type>>(n, vector<type>(__VA_ARGS__))))
struct Setting{ Setting(){ cin.tie(nullptr)->sync_with_stdio(0); fixed(cout).precision(12); } }Setting;
// #define _GLIBCXX_DEBUG
//-----------------------------------

// return floor(sqrt(N))
long long isqrt(long long N) {
    long long x = N, y = (N + 1) / 2;
    while(y < x) {
        x = y;
        y = (y + N / y) / 2;
    }
    return x;
}
void solve() {
    ll S; cin >> S;
    vector<ll> ans;
    while(S) {
        ll t = isqrt(S);
        ans.push_back(t * t);
        S -= t * t;
    }
    cout << ans.size() << endl;
    for(auto& x: ans) {
        cout << x << " ";
    }
    cout << endl;
}
int main() { 
    int T = 1;
    // cin >> T;
    while(T--) {
        solve();
    };
}