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