func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int gcd(long long int a, long long int b) {     if (a == 0) return b;     return gcd(b % a, a);   }   int main() {     long long int n, a[100001], sum = 0, m;     cin >> n;     for (int i = 0; i < n; ++i) cin >> a[i];     sort(a, a + n);     for (int i = 1; i < n; ++i) {       sum += i * a[i] - a[i - 1];       a[i] += a[i - 1];     }     sum = 2 * sum + a[n - 1];     m = gcd(sum, n);     cout << sum / m <<     << n / m;   }   