#include<bits/stdc++.h>
using namespace std;
#define int  long long
int a[10000005],pre[10000005],n,m,maxi=-1e9;
signed main()
{
	cin>>n;
	for(int i=1;i<=n;++i)
	{
		cin>>a[i];
		pre[i]=pre[i-1]+a[i];
	}
	cin>>m;
	for(int i=1;i<=m;++i)
	{
		int x,y;
		cin>>x>>y;
		cout<<pre[y-1]+x<<endl;
	}
	return 0;
}