typedef long long ll;
typedef long double ld;

#include <bits/stdc++.h>
using namespace std;
#define int long long
ll isqrt(ll N){
   	ll sqrtN=sqrt(N)-1;
   	while(sqrtN+1<=N/(sqrtN+1))sqrtN++;
   	return sqrtN;
   }
signed main(){
    ll s;
    std::cin >> s;
    vector<ll> ans;
    while(s>0){
        ll he = isqrt(s);
        s -= he*he;
        ans.push_back(he*he);
    }
    std::cout << ans.size() << std::endl;
    for (int i = 0; i < ans.size(); i++) {
        std::cout << ans[i];
        if(i<ans.size()-1){
            std::cout << " ";
        }
    }
    std::cout << std::endl;
}