#include"bits/stdc++.h"

//#include<bits/stdc++.h>
using namespace std;
#define print(x) cout<<x<<endl;
#define rep(i,a,b) for(int i=a;i<b;i++)
typedef long long ll;
const ll mod = 10000000000;

int dp[1002][2];//0の時前回とってない、1の時とった。
int n;
int v[1002];
vector<int>vec;

int dfs(int num,bool f) {
	if (dp[num][f] > 0)return dp[num][f];
	int res=0;
	if (num == n)res=0;
	else if (f) { res = dfs(num + 1, 0); }
	else if (!f) { res = max(dfs(num + 1, 1) + v[num], dfs(num + 1, 0)); }
	return dp[num][f]=res;
}

int main(){
	
	memset(dp, 0, sizeof(dp));
	cin >> n;
	if (n == 0) { print(0); return 0; }
	rep(i, 0, n) { cin >> v[i];}
	int ans = dfs(0, 0);
	print(dfs(0, 0));
	bool f = 0;
	rep(i, 0, n) {
		if (ans - v[i] == dp[i+1][1]) {
			vec.push_back(i);
			ans -= v[i];
			i++;
		}
	}
	rep(i, 0, vec.size()) {
		cout << vec[i]+1 << " ";
	}
	cout << endl;
	return 0;
}