#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
const int N = 1e5 + 5, M = 100 + 5, OO = 0x3f3f3f3f, MOD = 1e9 + 7;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  if (n == 1)
    cout << -1;
  else
    cout << n << " " << n + 1 << " " << n * (n + 1);
  return 0;
}
