#include <bits/stdc++.h>
#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using ll = long long;
using namespace std;

int main(){
    ll s;
    cin >> s;
    vector<ll> ans;
    while (s){
        ll lo = 1, mid, hi = 1e9;
        while (hi - lo > 1){
            mid = (lo + hi)/2;
            if (mid*mid <= s) lo = mid;
            else hi = mid;
        }
        ans.push_back(lo*lo);
        s -= lo*lo;
        
    }
    string delim = "";
    cout << ans.size() << endl;
    for (auto x : ans){
        cout << delim << x;
        delim = " ";
    }
    cout << endl;
}