#include <iostream>
#include <vector> 
#define rep(i,n) for(i=0;i<n;i++)
using namespace std;
int main(void)
{
  int i,j,k,l;
  int n;
  vector<int> o[4]; // order
  int v[4]; // value
  int vv,e;
  cin >> n;
  rep(i,4) {
    v[i] = 0;
  }
  for(i=1;i<n+1;i++) {
    int g;
    cin >> vv;
    e = 1; g = v[1];
    rep(j,2) {
      if(g < v[j+2] + vv) {
        g = v[j+2] + vv;
        e = j+2;
      }
    }
    v[0] = g;
    o[0] = o[e];
    if(e != 1) o[0].push_back(i);
    rep(j,3) {
      v[3-j] = v[3-j-1];
      o[3-j] = o[3-j-1];
    }
  }
  e = 1;
  if(v[1] < v[2]) e = 2;
  cout << v[e] <<endl;
  cout << o[e][0];
  for(i=1;i<o[e].size();i++) {
    cout << " " << o[e][i];
  }
  puts("");
}