#include <bits/stdc++.h>
using namespace std;
const long long N = 200005, INF = 2000000000000000000;
long double pi = 3.1415926535897932;
long long power(long long a, long long b, long long p) {
  if (a == 0) return 0;
  long long res = 1;
  a %= p;
  while (b > 0) {
    if (b & 1) res = (res * a) % p;
    b >>= 1;
    a = (a * a) % p;
  }
  return res;
}
int32_t main() {
  std::ios::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  cout.precision(std::numeric_limits<double>::max_digits10);
  ;
  long long r;
  cin >> r;
  for (long long i = 1; i <= 1000000; i++) {
    long long rr = r - (i * i) - i - 1;
    if (rr > 0 && (rr % (2 * i)) == 0) {
      cout << i << " " << (rr / (2 * i));
      return 0;
    }
  }
  cout << "NO";
  return 0;
}
