using System;

public class Program

{

    public static void Main()

    {

        int choice;

        int count = 0;

        string []studentID =new string[100];

        string []fName =new string[100];

        string []lName =new string[100];

        while(true){

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

            Console.WriteLine("Press 1 Add member");

            Console.WriteLine("Press 2 Show total member");

            Console.WriteLine("Press 3 Show all member data");

            Console.WriteLine("Press 4 Exit");

            Console.WriteLine("Please Enter menu :");

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

            if(choice==1){

                Console.WriteLine("Student ID :");

                studentID[count] = Console.ReadLine();

                Console.WriteLine("Student First Name :");

                fName[count] = Console.ReadLine();

                Console.WriteLine("Student Lastname :");

                lName[count] = Console.ReadLine();

                count++;//count = count+1;

            }

            else if(choice==2){

                Console.WriteLine("Total member = {0}", count);

            }

            else if(choice==3){

                for(int i=0;i<count;i++){

                    Console.WriteLine("ID = {0}, Name = {1} {2}", studentID[i], fName[i], lName[i]);

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

                }

            }

                    else if(choice==4){

                break;

            }

            else{

                Console.WriteLine("Invalid choice");

            }

            Console.ReadLine();

            Console.ReadLine();

        }

        Console.WriteLine("goodbye");

    }

}