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