using System;

public class Program

{

    public static void Main()

    {

        int choice=0;

        string[,]name= new string[5,3]

        {

            {"周子瑜","李玉璽","周杰倫"},

            {"李榮浩","郭采潔","林心如"},

            {"林志玲","金敏俊","郭雪芙"},

            {"林俊傑","郭碧婷","王大陸"},

            {"蔣宜庭","周美玲","蔣盛雲"}

        };

        do {

            Console.WriteLine("############");

            Console.WriteLine("銘傳點名系統");

            Console.WriteLine("*********");

            Console.WriteLine("      第一個 第二個 第三個");

            int i,j,x,y;

            for(i=0;i<5;i++)

            {

                Console.Write("第"+(i+1)+"排");

                for(j=0;j<3;j++)

                {

                    Console.Write(" ");

                    Console.Write(name[i,j]);

                }

                Console.WriteLine();

            }

            Console.WriteLine();

            Console.WriteLine("請輸入(點名請按0，按9離開):");

            choice=Convert.ToInt16(Console.ReadLine());

            if (choice ==0)

            {

                string password;

                Console.Write("請輸入管理密碼");

                password=Console.ReadLine();

                if (!(password=="xx123"))

                {

                    Console.WriteLine();

                    Console.WriteLine("密碼錯誤");

                    break;

                }

                Console.Write("缺席者作第幾排?");

                x=Convert.ToInt16(Console.ReadLine());

                Console.Write("缺席者作第幾個?");

                y=Convert.ToInt16(Console.ReadLine());

                if((x>=1)&&(x<=5)&&(y>=1)&&(y<=3))

                { name[x-1,y-1]="缺席";}

                else

                {

                Console.WriteLine();

                Console.WriteLine("查無此人");

                Console.WriteLine();

             }

            }

        }while(choice !=9);

        Console.WriteLine();

        Console.WriteLine("再見!");

    }

}