#include <bits/stdc++.h>
long long binpow(long long a, long long b) {
  long long res = 1;
  while (b != 0) {
    if (b & 1) res *= a;
    a *= a;
    b >>= 1;
  }
  return res;
}
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long n;
  cin >> n;
  if (n == 1)
    cout << "-1\n";
  else
    cout << n << ' ' << n + 1 << ' ' << (n * (n + 1)) << "\n";
}
