using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace pivas
{
    class Brewery {


        public void info() {


        }
        public Brewery (){

        }
    }
    class Beer:Brewery {
        string color;
        string filter;
        string nameofbeer;
        string bitternes;
        string alcohol;
        string timetodo;
        string timetodrink;
        struct ingredients {
            string yeats;//drojji
            string hop;//hmel'
            string malt;//solod
            string water;
            string sugar;
        }
    }

    class Person {
        struct name
        {
            string fname;//im`a
            string fathername;//ot4estvo
            string sname;//familia
        }
        struct register {
            string email;
            string nickname;
            string password1;
            string password2;

        }
        public Person() {

        }
    }

    class Buyer:Person {
        public Buyer() {

        }
    }
    class Worker
    {
        public Worker() {

        }
    }
    class Seller:Worker {
        public Seller() {

        }
    }
    class Administrator : Worker
    {
        public Administrator() {

        }
    }


    class Program

    {
        static void Main(string[] args)
        {
            int num;
            Console.WriteLine("Who are you?\nI'm:\n1. seller\n2. buyer\n3. administrator");
            num = Convert.ToInt32(Console.ReadLine());
            switch (num) {
                case 1:
                    Console.WriteLine("Please sign in");
                    Console.ReadLine();
                    break;
                case 2:
                    Console.WriteLine("Please sign in or sign up");
                    break;
                case 3:
                    Console.WriteLine("Please sign in");
                    break;
                default:
                    Console.WriteLine("Incorrect symbol");
                    break;
            }

        }
    }
}