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

int main() {
	long long S;
	cin >> S;
	vector<long long> A;
	while (S > 0){
		long long k = sqrt(S);
		k *= k;
		A.push_back(k);
		S -= k;
	}
	cout << A.size() << endl;
	for (int i = 0; i < (int) A.size(); i++){
		cout << A[i];
		if (i + 1 < (int) A.size()){
			cout << ' ';
		}
	}
	cout << endl;
}