#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define momen ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define endl "n"
#define fp(n) for(ll i=0;i<n;i++)
#define fp1 for(ll i=1;i<=n;i++)
#define all(v) sort(v.begin() , v.end() )
const int mod = 1e9+7 ,N= 2e5+5;
int n ,m;
void solve() {
int n;
cin>>n;
vector<ll>v(n);
for(int i =0;i<n;i++)
cin>>v[i];
for (int i = 1; i < n; ++i) {
v[i]+=v[i-1] ;
}
int q ;cin>>q;
while(q--){
int l,r;
cin>>l>>r;
if (l==0)
cout<<v[r]<<endl;
else
cout<<v[r] - v[l-1]<<endl ;
//cout<<v[r] - ( (l ==0 )? 0 : v[l-1] )<<endl;
}
}
signed main(){
//momen
ll t=1;
// cin >> t;
while (t--){
solve();
}
return 0;
}