Sum5numbers

class Progrqm
{
        static void Main(string[] args)
        {
            List<double> numbers = Console.ReadLine().Split().Select(double.Parse).ToList();

            while (numbers.Count < 5)
            {
                Console.WriteLine("Numbers are less than 5. Add more numbers: ");
                numbers.AddRange(Console.ReadLine().Split().Select(double.Parse));
            }

            Console.WriteLine(numbers.Take(5).Sum());
        }
}