Solution:

public class Solution {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    ArrayList<ArrayList<Integer>> list = new ArrayList<>();
    for(int i=1;i<=n;i++){
        ArrayList<Integer> newList = new ArrayList<>();
        int d = sc.nextInt();
        for(int j=1;j<=d;j++){
            int l = sc.nextInt();
           newList.add(l);
        }
        list.add(newList);
    }
    int q = sc.nextInt();
    for(int i=0;i<q;i++){
        int x = sc.nextInt()-1;
        int y = sc.nextInt()-1;
    if(list.get(x).size()>y){
        System.out.println(list.get(x).get(y));
    } else {
        System.out.println("ERROR!");
    }


    }
}

}