#include <bits/stdc++.h>
using namespace std;
long long MOD = 1000000007;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  long long n;
  cin >> n;
  if (n == 1)
    cout << "-1" << endl;
  else {
    long long a = n;
    long long b = n + 1;
    long long c = n * (n + 1);
    cout << a << " " << b << " " << c << endl;
  }
  return 0;
}
