// 2020/1/12(日)
// 2020/1/14(火)L8改変
import java.util.*;
import java.util.stream.*;

public class HitAndBlow
{
    private List<String> answer;
    private int blow;
    private int hit;
    private List<String> inputnum;
    private Scanner scan = new Scanner(System.in);

    public HitAndBlow()
    {
        List<String> strs = IntStream.range(0, 10)
                                     .mapToObj(Integer::valueOf)
                                     .map(i -> String.valueOf(i))
                                     .collect(Collectors.toList());

        Collections.shuffle(strs);

        answer = strs.stream().skip(6).collect(Collectors.toList());
    }

    public void playgame()
    {
        System.out.println("ヒットアンドブローをします");

        boolean isNext = true;
        for (int i = 1; isNext; i++)
        {
            this.inputnum();
            if (this.checkhitandblow())
            {
                System.out.println("正解です！ゲームを終了します。");
                return;
            }

            System.out.println(i + "回目のトライ " + hit + "ヒット！" + blow + "ブロー！です");
            System.out.print("続けますか？ 続ける:1を入力 止める:1以外を入力：");

            switch (scan.nextLine())
            {
                case "1":
                    break;

                default:
                    isNext = false;
                    break;
            }
        }

        System.out.println("正解は" + String.join("", answer) + "でした");
    }

    private boolean checkhitandblow()
    {
        List<String> templist = new ArrayList<String>();

        hit = 0;
        for (int i = 0; i < answer.size(); i++)
        {
            if (answer.get(i).equals(inputnum.get(i)))
            {
                hit++;
                templist.add(inputnum.get(i));
            }
        }

        if (hit == 4)
        {
            return true;
        }

        List<String> templist2 = new ArrayList<String>(inputnum);
        templist2.removeAll(templist);

        blow = (int)(answer.stream()
                           .filter(s -> templist2.contains(s))
                           .count());

        return false;
    }

    private void inputnum()
    {
        do
        {
            System.out.print("4桁の数字を入力してください：");
            String line = scan.nextLine();

            // 数値に変換可能か
            try
            {
                Integer.parseInt(line);
            }
            catch (NumberFormatException nfex)
            {
                continue;
            }

            // 入力は4桁か
            if (line.length() == 4)
            {
                inputnum = Arrays.asList(line.split(""));
                return;
            }
        } while (true);
    }

    public static void main(String[] args)
    {
        new HitAndBlow().playgame();
    }
}