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JavaArrayList.java
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JavaArrayList.java
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import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class JavaArrayList {
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
List<List<Integer>> arr_list = new ArrayList<List<Integer>>();
for(int i = 0; i<n;i++){
int d = sc.nextInt();
ArrayList<Integer> inner_list = new ArrayList<Integer>();
while(d-- > 0){
inner_list.add(sc.nextInt());
}
arr_list.add(inner_list);
}
int q = sc.nextInt();
while(q-- >0){
int x = sc.nextInt();
int y = sc.nextInt();
if (y > arr_list.get(x - 1).size()) {
System.out.println("ERROR!");
} else {
System.out.println(arr_list.get(x - 1).get(y - 1));
}
}
sc.close();
}
}