#include <bits/stdc++.h>
using namespace std;
int main() {
  long n;
  cin >> n;
  long a = n + 1;
  long b = n * (n + 1);
  if (n != a && n != b && a != b) {
    cout << n << " " << a << " " << b << endl;
  } else {
    cout << -1 << endl;
  }
}
