#include <bits/stdc++.h>
const long long LINF = 1e18;
const int INF = 1e9;
const int M = 1e9 + 7;
const double EPS = 1e-9;
using namespace std;
int main(int argc, const char* argv[]) {
  std::ios_base::sync_with_stdio(0);
  int n;
  cin >> n;
  if (n == 1) {
    cout << -1;
    return 0;
  }
  cout << n << ' ' << n + 1 << ' ' << n * (n + 1);
  return 0;
}
