#include <bits/stdc++.h>
using namespace std;
int n, p, ls, ld, nr, ras, m, cate;
int main() {
  scanf("%d", &n);
  if (n == 1) {
    printf("-1");
    return 0;
  }
  printf("%d %d %d", n, n + 1, n * (n + 1));
  return 0;
}
