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