import java.util.*;
 
public class Main {
    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);
        int n = scn.nextInt();
        int[] prefixSum = new int[n + 1];
 
        for (int i = 1; i <= n; i++) {
            prefixSum[i] = prefixSum[i - 1] + scn.nextInt();
        }
 
        int q = scn.nextInt();
        while (q-- > 0) {
            int l = scn.nextInt();
            int r = scn.nextInt();
            int left = (l == 0) ? 0 : prefixSum[l];
            System.out.println(prefixSum[r + 1] - left);
        }
    }
}
 

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MwoxIDQgMQozCjEgMQoxIDIKMCAy

3
1 4 1
3
1 1
1 2
0 2