#include <bits/stdc++.h>
using namespace std;
using ll=long long;
ll sqrtz(ll N) {
    ll L = 0;
    ll R = sqrt(N) + 10000;
    while (abs(R - L) > 1) {
        ll mid = (R + L) / 2;
        if (mid * mid <= N)L = mid;
        else R = mid;
    }
    return L;
}

int main() {
    ll N;
        cin>>N;
        vector<ll> AN;
        while(N>0){
            ll z=sqrtz(N);
            AN.push_back(z*z);
            N-=z*z;
        }
        N=AN.size();
        cout<<N<<endl;
        for(ll i=0;i<N;i++)cout<<AN[i]<<" \n"[i==N-1];
}