#include <bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<array<int, 2>> dp(n + 1);
    vector<array<int, 2>> pre(n + 1);
    for (int i = 0; i < n; i++) {
        dp[i][0] = dp[i][1] = 0;
    }
    for (int i = 0; i < n; i++) {
        if (dp[i][0] >= dp[i][1]) {
            dp[i + 1][0] = dp[i][0];
            pre[i + 1][0] = 0;
        } else {
            dp[i + 1][0] = dp[i][1];
            pre[i + 1][0] = 1;
        }
        dp[i + 1][1] = max(dp[i + 1][1], dp[i][0] + a[i]);
        pre[i + 1][1] = 0;
    }
    vector<int> ans;
    if (dp[n][0] >= dp[n][1]) {
        int j = 0;
        for (int i = n; i >= 1; i--) {
            if (j == 1) {
                ans.push_back(i);
            }
            j = pre[i][j];
        }
    } else {
        int j = 1;
        for (int i = n; i >= 1; i--) {
            if (j == 1) {
                ans.push_back(i);
            }
            j = pre[i][j];
        }
    }
    reverse(ans.begin(), ans.end());
    cout << max(dp[n][0], dp[n][1]) << '\n';
    for (int i = 0; i < (int) ans.size(); i++) {
        cout << ans[i] << " \n"[i + 1 == (int) ans.size()];
    }
}