using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("=============");

        Console.WriteLine("   BY NAIL   ");

        Console.WriteLine("=============");

        Boolean i = true;

        int pilihan;

        string yesno;

        do

        {

            Console.WriteLine("Pilihan Menu");

            Console.WriteLine("1. Lihat Data");

            Console.WriteLine("2. Input Data");

            Console.WriteLine("3. Hapus Data");

            Console.WriteLine("4. Edit Data");

            Console.WriteLine("Masukkan pilihan anda");

            pilihan = Int32.Parse(Console.ReadLine());

            Console.WriteLine();

            Console.WriteLine("apakah anda ingin lanjut (y/n)");

            yesno = Console.ReadLine().ToLower();

            if(yesno == "n")

            {

                i = false;

            }

        }

        while(i == true);

        Console.ReadKey();

    }

}