#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, x, y, z = 0;
  cin >> n;
  x = n;
  if (n == 1) {
    cout << "-1\n";
    return 0;
  }
  y = n + 1;
  while ((y * n) % (y - n) != 0 || (y * n) / (y - n) == y) {
    y++;
    if (y > 1000000000) {
      y = -1;
      break;
    }
  }
  if (y != -1) {
    z = (y * n) / (y - n);
    cout << x << " " << y << " " << z << "\n";
  } else
    cout << "-1\n";
}
