PassioDays3

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

namespace _04_PassionDay2
{
    class Program
    {
        static void Main(string[] args)
        {
            decimal money = decimal.Parse(Console.ReadLine());
            string text = Console.ReadLine();
            decimal valueAsci = 0;

            int numberOfPurchases = 0;
            decimal moneyLeft = money;

            while (text != "mall.Enter")
            {
                text = Console.ReadLine();
            }
            text = Console.ReadLine();

            while (text != "mall.Exit")
            {
                string Asci = text;
                char[] parameters = Asci.ToCharArray();


                for (int i = 0; i < parameters.Length; i++)
                {

                    char parameterI = parameters[i];

                    if (char.IsLetter(parameterI) && Char.IsUpper(parameterI))
                    {
                        valueAsci = (decimal)parameterI / 2;
                        if (money < valueAsci)
                        {
                            continue;
                        }
                        moneyLeft -= valueAsci;
                        numberOfPurchases++;
                    }
                    else if (char.IsLetter(parameterI) && Char.IsLower(parameterI))
                    {
                        valueAsci = 0.3m * (decimal)parameterI;
                        if (money < valueAsci)
                        {
                            continue;
                        }
                        moneyLeft -= valueAsci;
                        numberOfPurchases++;
                    }

                    else if (parameterI == '%')
                    {
                        if(money>0)
                        {
                            moneyLeft /= 2;
                            numberOfPurchases++;
                        }

                    }
                    else if (parameterI == '*')
                    {

                        moneyLeft += 10;

                    }
                    else
                    {
                        valueAsci = (decimal)parameterI;
                        if (money<=valueAsci)
                        {
                            moneyLeft -= valueAsci;
                            numberOfPurchases++;
                        }

                    }

                }
                text = Console.ReadLine();

            }
            if (numberOfPurchases == 0)
            {
                Console.WriteLine("No purchases. Money left: {0:f2} lv.", moneyLeft);
            }
            else
            {
                Console.WriteLine("{0} purchases. Money left: {1:f2} lv.", numberOfPurchases, moneyLeft);
            }

        }
    }
}