import java.util.Scanner;

public class Exam_Task4_EasterShop {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int eggsInStore = Integer.parseInt(scanner.nextLine());
        String command = scanner.nextLine();

        boolean outOfStock = false;

        int soldEggs = 0;
        while (!"Close".equals(command)) {
            int eggs = Integer.parseInt(scanner.nextLine());

            if ("Buy".equals(command)) {
                soldEggs += eggs;

                if (eggs > eggsInStore) {
                    outOfStock = true;
                    break;
                }
                eggsInStore -= soldEggs;
            }
            if ("Fill".equals(command)) {
                eggsInStore += eggs;
            }

            command = scanner.nextLine();
        }
        if (outOfStock) {
            System.out.printf("Not enough eggs in store!\nYou can buy only %d.", eggsInStore);
        } else {
            System.out.printf("Store is closed!\n%d eggs sold.", soldEggs);
        }

    }
}