#include <bits/stdc++.h>

using namespace std;

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  int n;
  cin >> n;
  vector<int> v(n);
  for (int i = 0; i < n; i++)
    cin >> v[i];

  vector<int> dp(n+1);
  dp[1] = v[0];

  for (int i = 1; i < n; i++)
    dp[i+1] = max(dp[i], dp[i-1] + v[i]);

  cout << dp[n] << endl;
  vector<int> w;
  for (int j = n; j > 0; ) {
    if (dp[j] == dp[j-1])
      --j;
    else {
      w.push_back(j);
      j -= 2;
    }
  }

  reverse(w.begin(), w.end());
  for (int t: w)
    cout << t << " ";
  cout << endl;
  
  return 0;
}