#include <bits/stdc++.h>
using namespace std;
const int INF = 0x3f3f3f3f;
const long long LINF = 2e18;
const double PI = acos(-1.0);
const double E = exp(1);
const double EPS = 1e-8;
const long long mod = 1e4 + 7;
const int maxn = 1e6 + 5;
void pre() {
  freopen("in.txt", "r", stdin);
  freopen("out.txt", "w", stdout);
}
int main(void) {
  long long n;
  cin >> n;
  if (n == 1) {
    cout << "-1" << endl;
  } else
    cout << n << " " << n + 1 << " " << (n + 1) * n << endl;
}
