func_code_string: #include <bits/stdc++.h>   using namespace std;   void fast() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);   }   const int N = 2e5 + 5;   vector<pair<long long, long long> > v;   long long n, m, k;   void solve() {     sort(v.rbegin(), v.rend());     long long sum = 0;     vector<long long> index;     for (long long i = 0; i < m * k; i++) {       sum += v[i].first;       index.push_back(v[i].second);     }     sort(index.begin(), index.end());     cout << sum <<   n ;     for (int i = 0; i < k - 1; i++) cout << index[(i + 1) * m - 1] <<    ;   }   int main() {     fast();     cin >> n >> m >> k;     for (int i = 0; i < n; i++) {       long long t;       cin >> t;       v.push_back(make_pair(t, i + 1));     }     solve();   }   