rt

#include<bits/stdc++.h>
#define ll  long long
#define rep(i,x,y)  for(int i=x;i<=y;i++)
#define pep(i,x,y)  for(int i=x;i>=y;i--)
#define rewp(i,x,y)  for(int i=x;i<y;i++)
using namespace std;
ll n,res[1010],m,l[1010],r[1010],ans;
int main(){
	scanf("%lld",&n);
	rep(i,1,n)	scanf("%lld",&res[i]);
	scanf("%lld",&m);
	rep(i,1,m){
		ans=0;
		scanf("%lld %lld",&l[i],&r[i]);
		rep(j,l[i],r[i]){
			ans+=res[j];			
		}
		printf("%lld\n",ans);
	}	
	return 0;
}