using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<string> tea = new List<string>(new string[]{"Black tea","Green tea","Oolong tea","White tea"});

        int i = 0;

        while (i < 2)

        {

            Console.Write("Would you like to add a tea (input 'add'), find out if a tea is in stock (input 'stock'), or be told what we have in stock right now (input 'inventory')?: ");

            string ans = Console.ReadLine();

            if (ans == "add")

            {

                AddTea(tea);

            }

        }

    }

    static void AddTea(List<string> tea)

    {

        Console.Write("Please enter what you would like to add to our teas: ");

        string added = Console.ReadLine();

        tea.Add(added);

    }

}