package MidExam;

import java.util.*;
import java.util.stream.Collectors;

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

        List<String>loots=Arrays.stream(scanner.nextLine().split("\\|")).collect(Collectors.toList());

        String[] items=scanner.nextLine().split("\\s+");
        List<String> plunder=new ArrayList<>();
        while (!"Yohoho!".equals(items[0])){
            if ("Loot".equals(items[0])){
                for (int i = 1; i <items.length ; i++) {
                    if (!loots.contains(items[i])){
                        loots.add(0,items[i]);
                    }
                }
            }else if ("Drop".equals(items[0])){
                int index=Integer.parseInt(items[1]);
                if (index>=0&&index<=loots.size()) {
                    loots.add(loots.get(index));
                    loots.remove(index);
                }
            }else if ("Steal".equals(items[0])){

                if (Integer.parseInt(items[1])<loots.size()) {
                    for (int i = 0; i <Integer.parseInt(items[1]) ; i++) {
                        plunder.add(loots.get(loots.size() - 1));
                        loots.remove(loots.size() - 1);
                    }
                    Collections.reverse(plunder);
                }else {
                    plunder.addAll(loots);
                    //loots.removeAll(loots);
                }

            }
            items=scanner.nextLine().split("\\s+");
        }
        for (int i = 0; i <plunder.size() ; i++) {
            if (!(i==plunder.size()-1)){
                System.out.print(plunder.get(i)+", ");
            }else {
                System.out.print(plunder.get(i));
            }
        }
        System.out.println();
        double sum=0;

        if (loots.size()>0) {
            for (String loot : loots) {
                sum += loot.length();
            }
            System.out.printf("Average treasure gain: %.2f pirate credits.",(double) (sum / loots.size()));
        }else {
            System.out.println("Failed treasure hunt.");
        }

    }
}