#include <bits/stdc++.h>
using namespace std;
template <class c>
struct rge {
  c b, e;
};
template <class c>
rge<c> range(c i, c j) {
  return rge<c>{i, j};
}
template <class c>
auto dud(c* x) -> decltype(cerr << *x, 0);
template <class c>
char dud(...);
struct debug {
  template <class c>
  debug& operator<<(const c&) {
    return *this;
  }
};
const long long xx = 2e5 + 10;
vector<long long> pos[xx];
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  long long n, m, k;
  cin >> n >> m >> k;
  vector<long long> v(n);
  vector<pair<long long, long long>> pi;
  for (long long i = 0; i < n; i++) {
    cin >> v[i];
    pi.emplace_back(v[i], i);
  }
  sort(pi.rbegin(), pi.rend());
  vector<pair<long long, long long>> vp;
  long long sum = 0;
  for (long long i = 0; i < m * k; i++) {
    sum += pi[i].first;
    vp.emplace_back(pi[i].second, pi[i].first);
  }
  sort(vp.begin(), vp.end());
  cout << sum << '\n';
  for (long long i = m - 1; i < vp.size() - m; i += m) {
    long long x = vp[i].first;
    cout << x + 1 << ' ';
  }
  cout << '\n';
}
