#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  if (n % 2 == 1) {
    cout << n / 2 << " " << (n / 2) + 1;
  } else if (n % 4 == 0) {
    cout << (n / 2) - 1 << " " << (n / 2) + 1;
  } else if (n % 4 == 2) {
    cout << (n / 2) - 2 << " " << (n / 2) + 2;
  }
}
