Club Part

import java.util.*;

public class Club_Party {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int capacity = Integer.parseInt(scanner.nextLine());

        String[] input = scanner.nextLine().split("\\s+");

        ArrayDeque<String> letter = new ArrayDeque<>(); //queue
        ArrayDeque<Integer> number = new ArrayDeque<>(); //queue

        int num = 0;
        for (int i = input.length - 1; i >= 0; i--) {
            if (Character.isAlphabetic(input[i].charAt(0))) {
                for (int j = i; j >= 0; j--) {

                    if (Character.isAlphabetic(input[j].charAt(0))) {
                        letter.offer(input[j]);
                    } else if (Character.isDigit(input[j].charAt(0))) {

                        int person = Integer.parseInt(input[j]);
                        if (num + person > capacity&&letter.size()==1) {
                            if (number.size() > 0) {
                                System.out.printf("%s -> ", letter.poll());
                                System.out.println(number.toString().replaceAll("[\\[\\]]", ""));
                                number.clear();
                                num = 0;
                                continue;
                            }else {
                                number.offer(Integer.parseInt(input[j]));
                           continue;
                            }
                        }
                        if (num + person > capacity && letter.size() > 1) {

                            System.out.printf("%s -> ", letter.poll());
                            System.out.println(number.toString().replaceAll("[\\[\\]]", ""));
                            number.clear();
                            num = 0;
                            number.offer(Integer.parseInt(input[j]));
                            num = person;
                            continue;
                        }

                        number.offer(Integer.parseInt(input[j]));
                        num += person;


                    }
                }
                break;
            }
        }


        System.out.println();


    }
}