#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
int q;
cin>>q;
while(q--){
int l,r;
cin>>l>>r;
long long sum=0;
for(int i=l; i<=r;i++){
sum+=a[i];
}
cout<<sum<<endl;
}
return 0;
}
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