#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n;
  cin >> n;
  long long a = n + 1;
  long long b = n;
  long long c = n * (n + 1);
  if (n == 1)
    cout << -1;
  else
    cout << a << " " << b << " " << c;
  return 0;
}
