#include <bits/stdc++.h>
using namespace std;
long long s[50], dif[50];
long long power(long long base, long long exp) {
  long long ret = 1;
  while (exp) {
    if (exp & 1) ret *= base;
    base *= base;
    exp >>= 1;
  }
  return ret;
}
int main() {
  long long n, k;
  cin >> n;
  if (n == 1)
    cout << "-1\n";
  else
    cout << n << ' ' << n + 1 << ' ' << n * (n + 1) << endl;
  return 0;
}
