#include <bits/stdc++.h>
using namespace std;
const double PI = acos(-1);
void solve() {
  long long n;
  cin >> n;
  ;
  if (n == 1)
    cout << -1 << endl;
  else
    cout << n << " " << n + 1 << " " << n * (n + 1) << endl;
}
signed main() {
  cin.tie(nullptr);
  std::ios::sync_with_stdio(false);
  solve();
}
