func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     size_t rnn;     cin >> rnn;     size_t rnsize = 2 * rnn;     size_t rncnt = rnsize;     vector<long> rnvec(rnsize);     while (rncnt--) cin >> rnvec[rncnt];     sort(rnvec.begin(), rnvec.end());     long rnsum_fin = 999999;     long rnsum = 0;     for (size_t rncnt1 = 0; rncnt1 < rnsize; ++rncnt1)       for (size_t rncnt2 = 0; rncnt2 < rncnt1; ++rncnt2) {         rnsum = 0;         for (size_t rncnt3 = 0, rnpos = 0; rncnt3 < rnsize; ++rncnt3)           if (rncnt3 != rncnt1 && rncnt3 != rncnt2) {             ++rnpos;             if (rnpos % 2)               rnsum -= rnvec[rncnt3];             else               rnsum += rnvec[rncnt3];           }         rnsum_fin = min(rnsum, rnsum_fin);       }     cout << rnsum_fin;   }   