#include<bits/stdc++.h>
using namespace std;
using ll=long long;

int main(){
  ll s;
  cin>>s;
  vector<ll> a;
  while(s){
    ll val=sqrt(s);
    s-=val*val;
    a.push_back(val*val);
  }
  cout<<a.size()<<endl;
  for(ll i=0;i<(ll)a.size();i++){
    cout<<a[i]<<" ";
  }
}