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