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

ll ll_square_root(ll x){
    ll l=1,r=1000000001;
    while(l+1<r){
        ll c=(l+r)/2;
        if(c*c<=x)l=c;
        else r=c;
    }
    return l;
}
int main()
{
    ll s;
    cin>>s;
    vector<ll> a;
    while(true){
        ll k=ll_square_root(s);
        while(s>=k*k){
            s-=k*k;
            a.push_back(k*k);
        }
        if(s==0)break;
    }
    int m=a.size();
    cout<<m<<endl;
    for(int i=0;i<m-1;i++)cout<<a[i]<<" ";
    cout<<a[m-1]<<endl;

    return 0;
}