#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    ifstream fin("sume2.in");
    ofstream fout("sume2.out");
    int N,M,S=0,i,j;
    long long int V[100001];
    fin>>N;
    for(int c=1;c<=N;c++)
        fin>>V[c];
    fin>>M;
    for(int c=1;c<=M;c++)
    {
        fin>>i>>j;

        fout<<S<<endl;
        S=0;
    }
return 0;
}