Problem 04

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

namespace SoftUni
{
    class Program
    {
        static void Main(string[] args)
        {
            float money = float.Parse(Console.ReadLine());
            string input = "";
            int purchases = 0;
            float x = 0.0f;

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

            input = Console.ReadLine();

            while(input != "mall.Exit")
            {
                for(byte i = 0; i < input.Length; i++)
                {
                    if(input[i] == '%')
                    {
                        if(money > 0)
                        {
                            money /= 2;
                            purchases++;
                        }

                    }else if(input[i] == '*')
                    {
                        money += 10;
                    }else if(input[i] >= 65 && input[i] <= 90)
                    {
                        // uppercase letter
                        x = input[i] / 2.0f;
                        if(money >= x)
                        {
                            money -= x;
                            purchases++;
                        }


                    }else if(input[i] >= 97 && input[i] <= 122)
                    {
                        // lowercase letter
                        x = input[i] * 0.3f;
                        if(money >= x)
                        {
                            money -= x;
                            purchases++;
                        }

                    }else if(money >= input[i])
                    {
                        money -= input[i];
                        purchases++;
                    }

                }
                // read next line
                input = Console.ReadLine();
            }
            if(purchases > 0)
                Console.WriteLine("{0} purchases. Money left: {1:F2} lv.", purchases, money);
            else
                Console.WriteLine("No purchases. Money left: {0:F2} lv.", money);

        }
    }
}