#include <bits/stdc++.h>
using namespace std;
int sgn(double a) { return a < -(1e-8) ? -1 : a < (1e-8) ? 0 : 1; }
int n;
void solve() {
  scanf("%d", &n);
  if (n == 1) {
    puts("-1");
  } else {
    if (n * (n + 1) >= 1e9) {
      puts("-1");
    } else {
      printf("%d %d %d\n", n, n + 1, n * (n + 1));
    }
  }
}
int main() {
  solve();
  return 0;
}
