#include <bits/stdc++.h>
using namespace std;

int main() {
	int n;
	cin>>n;
	
	vector<int> numbers(n);
	
	for(auto& number: numbers){
		cin>>number;
	}
	
	int q;
	cin>>q;
	
	while(q--){
		int L,R;
		cin>>L>>R;
		
		int sum = 0;
		
		for(int i=L; i<=R; i++){
			sum += numbers[i];
		}
		
		cout<<sum<<" ";
	}
	
	return 0;
}