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