Suitcases Load

using System;

namespace SuitcasesLoad
{
    class Program
    {
        static void Main()
        {
            double size = double.Parse(Console.ReadLine());
            string suitcase = Console.ReadLine();
            int counter = 0;

            while (suitcase != "End")
            {
                counter++;
                double box = double.Parse(suitcase);

                if (counter % 3 == 0)
                {
                    box *= 1.1;
                }

                if (box > size)
                {
                    counter--;
                    break;
                }
                size -= box;
                suitcase = Console.ReadLine();
            }

            if (suitcase == "End")
            {
                Console.WriteLine("Congratulations! All suitcases are loaded!");
            }
            else
            {
                Console.WriteLine("No more space!");
            }
            Console.WriteLine($"Statistic: {counter} suitcases loaded.");
        }
    }
}


РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

using System;

namespace SuitcasesLoad
{
    class Program
    {
        static void Main()
        {
            double size = double.Parse(Console.ReadLine());
            int counter = 0;

            while (size >= 0)
            {
                string suitcase = Console.ReadLine();
                if (suitcase == "End")
                {
                    break;
                }
                counter++;
                double box = double.Parse(suitcase);
                box *= counter % 3 == 0 ? 1.1 : 1;
                size -= box;
                counter -= size < 0 ? 1 : 0;
            }

            Console.WriteLine(size >= 0 ? "Congratulations! All suitcases are loaded!" : "No more space!");
            Console.WriteLine($"Statistic: {counter} suitcases loaded.");
        }
    }
}