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

vector<array<int, 3>> ans, nans;
int n;

void check(int x, int y) {
	if ((n - x * y) % (x + y) != 0) return;
	int z = (n - x * y) / (x + y);
	ans.push_back({ x, y, z });
}

int main() {
	ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	cin >> n;
	for (int xy = 1; xy * xy <= n; xy ++) {
		for (int i = 1; i * i <= xy; i ++) if (xy % i == 0) {
			int x = i, y = xy / i;
			check(x, y);
			if (x != y) check(y, x);
		}
	}
	for (int i = 1; i * i <= n; i ++) if (n % i == 0) {
		int y = i, z = n / i;
		if (y > z) swap(y, z);
		ans.push_back({ 0, y, z });
	}
	for (auto [x, y, z] : ans) {
		vector<int> arr{ x, y, z };
		vector<int> p{ 1, 2, 3 };
		do {
			nans.push_back({ arr[p[0] - 1], arr[p[1] - 1], arr[p[2] - 1] });
		} while(next_permutation(p.begin(), p.end()));
	}
	sort(nans.begin(), nans.end());
	nans.erase(unique(nans.begin(), nans.end()), nans.end());
	cout << nans.size() << "\n";
	for (auto [x, y, z] : nans) cout << x << " " << y << " " << z << "\n";
	return 0;
}