using System;
using System.Collections;
class CourseScore
{
    private string name;
    private int courseID;
    private int score;

    public CourseScore(string name, int courseID, int score)
    {
        this.name = name;
        this.courseID = courseID;
        this.score = score;
    }

    public string Name
    {
        get { return name; }
        set { name = value; }
    }

    public int CourseID
    {
        get { return courseID; }
        set { courseID = value; }
    }

    public int Score
    {
        get { return score; }
        set { score = value; }
    }
}

class CourseScoreIndexer
{
    private ArrayList arrCourseScore;

    public CourseScoreIndexer()
    {
        arrCourseScore = new ArrayList();
    }

    public int this[string name, int courseID]
    {
        get
        {
            foreach(CourseScore cs in arrCourseScore)
            {
                if (cs.Name == name && cs.CourseID == courseID)
                    return cs.Score;
            }
            return -1;
        }
        set
        {
            arrCourseScore.Add(new CourseScore(name, courseID, value));
        }
    }

    public ArrayList this[string name]
    {
        get
        {
            ArrayList tempArray = new ArrayList();
            foreach (CourseScore cs in arrCourseScore)
            {
                if (cs.Name == name)
                    tempArray.Add(cs);
            }
            return tempArray;
        }
    }
}

class Test
{
    static void Main()
    {
        CourseScoreIndexer csi = new CourseScoreIndexer();
        csi["張三", 1] = 90;
        csi["張三", 2] = 70;
        csi["張三", 3] = 85;
        csi["李四", 1] = 80;
        Console.WriteLine(csi["張三", 2]);
        Console.WriteLine("張三的所有的課程成績為：");
        ArrayList tempArray;
        tempArray = csi["張三"];
        foreach (CourseScore cs in tempArray)
        {
            Console.WriteLine("姓名：{0} 課程：{1} 分數：{2}", cs.Name, cs.CourseID, cs.Score);
        }
        Console.Read();
    }
}