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