#include <bits/stdc++.h>
using namespace std;
int main() {
  int x = 0, y = 1, t = 1000000000;
  double z = 0;
  cin >> x;
  y = x + 1;
  if (x == 1) {
    cout << -1;
    return 0;
  }
  z = 1.0 / (1.0 / x - 1.0 / y);
  if (z > t) {
    cout << -1;
    return 0;
  }
  if (int(z) % 2 != 0) {
    z++;
  }
  cout << x << ' ' << y << ' ' << int(z);
}
