//#pragma optimization_level 3
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include<bits/stdc++.h>
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>ordset;
*/
#define fr first
#define sc second
#define vec vector
#define pb push_back
#define pii pair<int, int>
#define forn(x,y) for(int x = 1 ; x <= y ; ++x)
#define all(x) (x).begin(),(x).end()
#define fast cin.tie(0);cout.tie(0);cin.sync_with_stdio(0);cout.sync_with_stdio(0);
#define x real
#define y imag
using namespace std;
typedef long long ll;
typedef unsigned int uint;
typedef complex<int> point;
const int nmax = 105, mmax = 80;
const ll linf = 1e18;
const ll mod = 998244353;
const int inf = INT_MAX;
int n, q;
ll a[nmax];
int l , r;
int main(){
fast;
cin >> n;
forn(i,n)cin >> a[i];
cin >> q;
forn(ss,q){
cin >> l >> r;
ll mx = 0;
for(int i = l ; i <= r ; i ++)
for(int j = i + 1 ; j <= r ; j++)
for(int k = j + 1 ; k <= r ; k++){
if(j-i <= k-j){
mx = max(mx,a[i] + a[j] + a[k]);
}
}
cout << mx << '\n';
}
}
