#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll,ll>;
#define fix(x) fixed << setprecision(x)
#define asc(x) x, vector<x>, greater<x>
#define rep(i, n) for(ll i = 0; i < n; i++)
#define all(x) (x).begin(),(x).end()
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}
constexpr ll INFLL = (1LL << 62), MOD = 998244353;
constexpr int INF = (1 << 30);

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<int> x,y,z;
    for(int i=1;i<=n;i++){
        for(int j=1;j*i<=n;j++){
            if(n==i*j){
                x.emplace_back(i);
                y.emplace_back(j);
                z.emplace_back(0);
                x.emplace_back(i);
                y.emplace_back(0);
                z.emplace_back(j);
                x.emplace_back(0);
                y.emplace_back(i);
                z.emplace_back(j);
            }else if((n-i*j)%(i+j)==0){
                x.emplace_back(i);
                y.emplace_back(j);
                z.emplace_back((n-i*j)/(i+j));
            }
            
        }
    }
    cout << x.size() << '\n';
    rep(i,x.size()){
        cout << x[i] << " " << y[i] << " " << z[i] << '\n';
    }
    return 0;
}