#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, a, b, c;
  cin >> n;
  if (n == 1) {
    cout << (-1) << endl;
  } else {
    a = n;
    b = a + 1;
    c = a * b;
    cout << a << ' ' << b << ' ' << c << endl;
  }
}
