#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  long long t, i, j, n, m, l, r;
  cin >> n;
  if (n == 1) {
    cout << "-1\n";
    return 0;
  }
  cout << n << " " << (n + 1) << " " << (n * (n + 1)) << "\n";
  return 0;
}
