#include<bits/stdc++.h>

using namespace std;

const int maxn = 1e5 +;

int a[maxn];

int n, m;

int ask(int x,int y)

{

    return (a[y] - a[x-])/;

}

int main()

{

    cin >> n;

    int x , y;

    for(int i = ;i <= n;i++)

    {

        cin >> a[i];

        a[i] += a[i-];

    }

    cin >> m;

    while(m--)

    {

        cin >> x >> y;

        cout << ask(x,y) << endl;

    }

    return ;

}