func_code_string: #include <bits/stdc++.h>   using namespace std;   inline bool EQ(double a, double b) { return fabs(a - b) < 1e-9; }   const int INF = (((1 << 30) - 1) << 1) + 1;   const int nINF = 1 << 31;   int gcd(int a, int b) { return b ? gcd(b, a % b) : a; }   int main() {     ios::sync_with_stdio(false);     int n;     cin >> n;     double ans = 0;     pair<int, int> res;     for (int i = (n - 2); i >= (0); i--) {       int a = i, b = n - i;       if (a > b) continue;       if (gcd(a, b) == 1 && a / (double)b > ans) {         ans = a / (double)b;         res = {a, b};       }     }     cout << res.first <<     << res.second << endl;     return 0;   }   