public static void main(String[] args) { Scanner sc =new Scanner( System.in) ; int lines =sc.nextInt() ; ArrayList array_list = new ArrayList() ; for (int i=0 ;i < lines;i++ ){ int colLineItem = sc.nextInt(); array_list.add(new ArrayList<>()); for(int y =0 ;y

                    } catch (Exception e) {
                        System.out.println("ERROR!");
                    }
                }

}

}