#include <bits/stdc++.h>
using namespace std;
const long long mod = 1e9 + 7;
long long dx[] = {-1, 0, 1, 0};
long long dy[] = {0, -1, 0, 1};
vector<long long> g[1000006], vis(1000006), vis2(1000006);
int32_t main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long n;
  cin >> n;
  if (n == 1) {
    cout << -1;
    return 0;
  } else {
    cout << n << " " << n + 1 << " " << n * (n + 1) << "\n";
  }
}
