#include <bits/stdc++.h>
using namespace std;
const int MAX = 2e5 + 10;
const int inf = 1e9 + 7;
int s, x1, x2, t1, t2, p, dt;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long n;
  cin >> n;
  if (n == 1) return cout << -1 << endl, 0;
  cout << n << " " << n + 1 << " " << (n + 1) * n << endl;
  return 0;
}
