#include <bits/stdc++.h>
#pragma warning(disable : 4996)
#pragma comment(linker, "/STACK:336777216")
using namespace std;
const int maxN = (int)1e3 + 100;
const int N = (int)1e6 + 100;
const int MOD = (int)1e9 + 7;
const int INF = INT_MAX;
const long long LL_INF = LLONG_MAX;
const long double PI = acos((long double)-1.0);
long long cnt = 0, ans = 0;
int main() {
  int n;
  cin >> n;
  if (n == 1) return !printf("-1");
  cout << n << ' ' << n + 1 << ' ' << n * (n + 1) << endl;
  return 0;
}
