#include <iostream>
#include <vector>
#include <set>
using namespace std;
using P = pair<int, int>;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);

  int X; cin >> X;
  vector<int> a(X, 1);
  for (int i = 2; i <= X; i++)
    for (int n = i; n <= X; n += i) a[n]++;

  auto f = [&](int n) { return n - a[n]; };
  
  set<P> s;
  int minfn = X;
  for (int n = 1; n <= X / 2; n++) {
    int fn = abs(f(n) - f(X-n));
    if (minfn > fn) {
      minfn = fn;
      s.clear();
      s.insert(P(n, X-n));
      s.insert(P(X-n, n));
    }
    else if (minfn == fn) {
      s.insert(P(n, X-n));
      s.insert(P(X-n, n));
    }
  }

  for (P p : s) cout << p.first << " " << p.second << "\n";
}