#include <bits/stdc++.h>
using namespace std;
using i64 = int64_t;
using vi = vector<i64>;
using vvi = vector<vi>;

void printvec(vi& x, int size = 0) {
    cout << x.front();
    for (int i = 1; i < (size == 0 ? x.size() : size); i++) {
        cout << " " << x[i];
    }
    cout << endl;
}

int main() {
    int n;
    cin >> n;
    vi dp(n + 3);
    vi as(n);
    for (int i = 0; i < n; i++) {
        int v;
        cin >> v;
        as[i] = v;
        dp[i + 3] = max(dp[i] + v, dp[i + 1] + v);
    }

    i64 ans = (n == 1 ? dp.back() : max(dp.back(), dp[n + 1]));
    cout << ans << endl;
    i64 sum = ans;
    vi ss;
    for (int i = n + 2; i >= 3; i--) {
        if (dp[i] == sum) {
            ss.push_back(i - 2);
            sum -= as[i - 3];
        }
    }
    assert(sum == 0);
    reverse(ss.begin(), ss.end());
    printvec(ss);
}