shop1

using System;
using System.Collections.Generic;

namespace PlayerShop
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> playerItems = new List<string>();
            List<string> sellerItems = new List<string>();

            sellerItems.Add("Shovel");
            sellerItems.Add("Sword");
            sellerItems.Add("Shield");
            sellerItems.Add("Potion");
            sellerItems.Add("Spear");
        }

        class Seller
        {
            public void showSellerItems(List<string> sellerItems)
            {
                foreach (var item in sellerItems)
                {
                    Console.WriteLine(item);
                }
            }
        }

        class Player
        {
            private void buyItem(int itemIndex, List<string> sellerItems, List<string> playerItems)
            {
                string tempItem = sellerItems[itemIndex - 1];
                sellerItems.RemoveAt(itemIndex - 1);
                playerItems.Add(tempItem);
            }
            public void showPlayerItems(List<string> playerItems)
            {
                foreach (var item in playerItems)
                    Console.WriteLine(item);
            }
        }
    }
}