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

int main() {
    int N;
    cin >> N;
    vector<tuple<int, int, int>> result;

    for (int x = 1; x < N; ++x) {
        for (int y = 1; y < N; ++y) {
            if (x * y >= N)
                break;
            int k = N - x * y;
            if (k % (x + y) == 0) {
                int z = k / (x + y);
                result.push_back(make_tuple(x, y, z));
            }
        }
    }

    for (int a = 1; a <= N; ++a) {
        if (N % a == 0) {
            result.push_back(make_tuple(0, a, N / a));
            result.push_back(make_tuple(a, 0, N / a));
            result.push_back(make_tuple(a, N / a, 0));
        }
    }

    cout << result.size() << endl;
    for (int i = 0; i < result.size(); ++i) {
        int a, b, c;
        tie(a, b, c) = result[i];
        cout << a << " " << b << " " << c << endl;
    }

    return 0;
}