package com.javarush.task.pro.task05.task0511;
import java.util.Scanner;
/*
Создаем двумерный массив
*/
public class Solution {
public static int[][] multiArray;
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
multiArray = new int[n][];
for (int i = 0; i < n; i++) {
int c = sc.nextInt();
multiArray[i] = new int[]{c};
multiArray[i] = new int[sc.nextInt()];
for (int j = 0; j < multiArray[i].length; j++) {
System.out.print("[]");
}
System.out.println();
}
}
}