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