#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 10, inf = 1e9;
int main() {
  ios_base::sync_with_stdio(false);
  int n, t = 3;
  cin >> n;
  if (n == 1)
    cout << -1;
  else
    cout << n << " " << n + 1 << " " << n * (n + 1);
  return 0;
}
