#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
using ll=long long;
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
template<class T> bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;}
template<class T> bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    ll S;
    cin>>S;
    vector<ll>V;
    while(S>0){
        ll ok=0,ng=1e9+1;
        while(ng-ok>1){
            ll mid=(ok+ng)/2;
            if(mid*mid<=S)ok=mid;
            else ng=mid;
        }
        V.push_back(ok*ok);
        S-=ok*ok;
    }
    cout<<(int)V.size()<<"\n";
    for(auto x:V)cout<<x<<" ";
    cout<<"\n";
}