func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     vector<int> w;     cin >> n;     for (int i = 0; i < 2 * n; i++) {       int x;       cin >> x;       w.push_back(x);     }     long long int m = INT_MAX;     for (int i = 0; i < w.size(); i++) {       for (int j = i + 1; j < w.size(); j++) {         vector<int> temp;         for (int k = 0; k < w.size(); k++) {           if (k != i and k != j) {             temp.push_back(w[k]);           }         }         sort(temp.begin(), temp.end());         long long int sum = 0;         for (int k = 1; k < temp.size(); k += 2) {           sum += (temp[k] - temp[k - 1]);         }         m = min(m, sum);       }     }     cout << m << endl;   }   