#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
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 (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=300005,INF=1<<30;

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    ll S;cin>>S;
    vector<ll> ans;
    while(S){
        ll z=sqrtl(S);
        while(z*z>S) z--;
        while((z+1)*(z+1)<=S) z++;
        ans.push_back(z*z);
        S-=z*z;
    }
    cout<<si(ans)<<endl;
    for(ll x:ans) cout<<x<<" ";
    cout<<endl;
}