03. Arena Tournament

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

namespace Arena_Tournament
{
    class Program
    {
        static void Main(string[] args)
        {
            var points = double.Parse(Console.ReadLine());
            string arena = Console.ReadLine().ToLower();
            string day = Console.ReadLine().ToLower();
            string items = Console.ReadLine().ToLower();

            double itemsCondition = 0;
            double discount = 0.0;

            if (items == "poor")
            {
                itemsCondition = 7000;
            }
            else if (items == "normal")
            {
                itemsCondition = 14000;
            }
            else if (items == "legendary")
            {
                itemsCondition = 21000;
            }

            if (arena == "nagrand")
            {
                if (day == "monday" || day == "wednesday")
                {
                    discount = 0.05;
                }
                else
                {
                    discount = 0;
                }
            }

            else if (arena == "gurubashi")
            {
                if (day == "tuesday" || day == "thursday")
                {
                    discount = 0.10;
                }
                else
                {
                    discount = 0;
                }
            }

            else if (arena == "dire maul")
            {
                if (day == "friday" || day == "saturday")
                {
                    discount = 0.07;
                }
                else
                {
                    discount = 0;
                }
            }

            double priceItems = itemsCondition - (itemsCondition * discount);
            double pricePerItem = priceItems / 5;

            if(priceItems <= points)
            {
                double pointsLeft = points - priceItems;
                Console.WriteLine("Items bought: 5");
                Console.WriteLine("Arena points left: {0}", pointsLeft);
                Console.WriteLine("Success!");
            }

            else
            {
                double itemsBought = 0;

                while (pricePerItem <= points)
                {
                    itemsBought++;
                    points -= pricePerItem;
                }

                double pointsLeft = points - (itemsBought * pricePerItem);
                Console.WriteLine("Items bought: {0}", itemsBought);
                Console.WriteLine("Arena points left: {0}", points);
                Console.WriteLine("Failure!");
            }
        }
    }
}