#include <bits/stdc++.h>
using namespace std;
long long n;
int main(int argc, char** argv) {
  scanf("%lld", &n);
  if (n >= 3)
    printf("%lld %lld %lld\n", n, n + 1, n * (n + 1));
  else if (n == 2)
    printf("2 3 6\n");
  else if (n == 1)
    printf("-1\n");
  return 0;
}
