func_code_string: #include <bits/stdc++.h>   using namespace std;   int gcd(int a, int b) {     if (a == 0) return b;     if (b == 0) return a;     if (a == b) return a;     if (a > b) return gcd(a - b, b);     return gcd(a, b - a);   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     int t = 1;     while (t--) {       int a, h, sum = 0;       cin >> a;       for (int i = 2; i < a; i++) {         int n = a;         while (n >= i) {           sum += n % i;           n = n / i;         }         sum += n;       }       h = gcd(sum, a - 2);       cout << sum / h <<  /  << (a - 2) / h << endl;     }     return 0;   }   