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