#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 10;
int main() {
  long long n;
  cin >> n;
  if (n != 1)
    cout << n << " " << n + 1 << " " << n * (n + 1);
  else
    cout << "-1" << endl;
  return 0;
}
